What Is The Average Relative Humidity During The Summer In Birmingham Alabama?

What Is The Average Relative Humidity During The Summer In Birmingham Alabama
Average Humidity

Daily	Place	Afternoon
74	Birmingham	57
74	Huntsville	56
76	Mobile	62
76	Montgomery	58

Does Birmingham Alabama have high humidity?

Birmingham Area Climograph Birmingham is located in a hilly area of north-central Alabama in the foothills of the Appalachians about 300 miles inland from the Gulf of Mexico. There is a series of southwest to northeast valleys and ridges in the area. The city is far enough inland to be protected from destructive tropical hurricanes, yet close enough that the Gulf has a pronounced modifying effect on the climate.

Although summers are long and hot, they are not generally excessively hot.
On a typical mid-summer day, the temperature will be nearly 70 degrees at daybreak, approach 90 degrees at mid-day, and level off in the low 90s during the afternoon.
It is not unusual for the temperature to remain below 100 degrees for several years in a row.

However, every few years an extended heat wave will bring temperatures over 100 degrees. July is normally the hottest month but there is little difference from mid-June to mid-August. Rather persistent high humidity adds to the summer discomfort. January is normally the coldest month but there is not much difference from mid-December to mid-February.

Overall, winters are relatively mild. Even in cold spells, it is unusual for the temperature to remain below freezing all day. Sub-zero cold is extremely rare, occurring only a very few times in recorded history. Extremely low temperatures almost always occur under clear skies after a snowfall. Snowfall is erratic.

Sometimes there is a two or three-year span with no measurable snow. On rare occasions, there may be a 2 to 4 inch snowstorm. The snow usually melts quickly. Even 1 or 2 inches of snow can effectively shut down this sunbelt city because of the hilly terrain, the wetness of the snow and the unfamiliarity of motorists driving on snow and ice.

Birmingham is blessed with abundant rainfall.
It is fairly well distributed throughout the year.
However, some of the wetter winter months, plus March and July, have twice the rainfall of October, the driest month.
Summer rainfall is almost entirely from scattered afternoon and early evening thunderstorms.

Serious droughts are rare and most dry spells are not severe. The stormiest time of the year with the greatest risk of severe thunderstorms and tornadoes is in spring, especially in March and April. In a normal year, the last 32 degree minimum temperature in the spring is in mid to late March and the first in autumn is in early November. What Is The Average Relative Humidity During The Summer In Birmingham Alabama : Birmingham Area Climograph

Is Alabama humid in the summer?

From Wikipedia, the free encyclopedia The state of Alabama is classified as humid subtropical ( Cfa ) under the Köppen climate classification, The state’s average annual temperature is 64 °F (18 °C). Temperatures tend to be warmer in the state’s southern portion with its proximity to the Gulf of Mexico, while its northern portions, especially in the Appalachian Mountains in the northeast, tend to be slightly cooler.

Alabama generally has hot, humid summers and mild winters with copious precipitation throughout the year.
The state receives an average of 56 inches (1,400 mm) of rainfall each year and experiences a lengthy growing season of up to 300 days in its southern portion.
Hailstorms occur occasionally during the spring and summer here, but they are seldom destructive.

Heavy fogs are rare, and they are confined chiefly to the coast. Thunderstorms also occur year-around. They are most common in the summer, but they are most commonly severe during the spring (i.e. March through May) and late autumn (i.e. November). That is when destructive winds and tornadoes occur frequently, especially in the northern and central parts of the state.

Central and northern Alabama are squarely within Dixie Alley, the primary area in the U.S.
Outside the Southern Plains (i.e.
The traditional Tornado Alley ) with relatively high tornado risk.
Alabama is ranked second in the U.S for the deadliest tornadoes.
Hurricanes are quite common in the state, especially in the southern part,

Major hurricanes occasionally strike the coast, such as Hurricane Frederic in September 1979 and Hurricane Ivan in September 2004; both storms resulted in significant to devastating damage in the Mobile area.

What is the average humidity in Alabama in July?

Table of contents – The average temperature in in July for a typical day ranges from a high of 82°F (28°C) to a low of 65°F (18°C). Some would describe it as pleasantly warm with a gentle breeze. For comparison, the hottest month in Alabama, July, has days with highs of 82°F (28°C) and lows of 65°F (18°C).

The coldest month, January has days with highs of 31°F (-0°C) and lows of 20°F (-7°C).
This graph shows how an average day looks like in Alabama in July based on historical data.
Highs and lows in Alabama in Jul In in July, there’s a 33% chance of rain on an average day.
And on the average day it rains or snows, we get 0.43 in (10.8 mm) of precipitation.

In more common terms of how much that is, some would describe it as light rain. The wettest month in Alabama is October where a typical day has a 44% chance of precipitation and gets 0.18 inches (4.5 mm) of precipitation, while the dryest month in Alabama is January where a typical day has a 27% chance of precipitation and gets 0.11 inches (2.9 mm) of precipitation.

These graphs show the probability of it raining/snowing in July and the amount of rainfall.
Chance of rain or snow on an average Alabama day by month Average precipitation by hour of day The average amount of time that the sky is clear or sunny (partly cloudy or less) in Alabama during July is 14.1 hours (59% of the day).

For comparison, the month with the most clear, sunny days in Alabama is August with an average of 14.9 hours per day while January has the shortest amount of cloud-free hours with only 7.0 hours per day. This graph shows the average amount of sunshine in Alabama in July based on historical data.

Monthly clear skies percent of time in Alabama The average day in Alabama during July has 15.0 hours of daylight, with sunrise at 5:47 AM and sunset at 8:49 PM.
The day with the longest amount of daylight in Alabama is June 20th with 15.4 hours while December 21st has the shortest amount of daylight with only 9.0 hours.

This graph shows the average amount of daylight in Alabama in July based on historical data. Average hours of daylight in Alabama by month In July, Alabama is moderately humid with an average amount of 66% (relative humidity), which could be described as humid but cool.

January has the highest relative humidity at 89% and is the least humid in July at 66%.
This graph shows the average amount of humidity in Alabama throughout July based on historical data.
Average relative humidity in Alabama by month Historically, the wind in Alabama during July blows at an average speed of 10.6 mph (17.1 kph).

The windiest month is January with an average wind speed of 17.3 mph (27.8 kph), while the calmest month is July with an average wind speed of 10.6 mph (17.1 kph). This graph shows the average wind speed in Alabama in July based on historical data. Average monthly wind speed in Alabama With an average high of 82°F (28°C) and a low of 65°F (18°C), it generally feels pleasantly warm with a gentle breeze.

There might also be a small chance of rain.
With that in mind, most people would dress in something light like your favorite t-shirt.
Weather data for was collected from the, which used a climate model combined with historical data from weather stations around the world to estimate what the conditions were like for every point on the Earth.

For all data based on historical data, we’ve averaged the data from the past 11 years (2010-2020). For example, for the hourly temperature at 10am, we’ve looked at the temperature at 10am on every day in July (e.g., July 1, July 2, etc. in 2010, 2011, etc.) and took the arithmetic mean.

What is average humidity in Alabama?

Oh The Humidity. Which State Is The Most Humid? Which state is more humid? Is it Florida? Louisiana? Hawai’i? The answer is none of the above. The state with the highest humidity over the course of the year is Alaska. That’s correct, the cold, frozen north is more humid than the warmest, most southerly states.

Is this a trick question? Yes and No,
When watching a local newscast or gazing at a weather app on a smartphone, you are likely to be presented with the temperature, cloud cover, relative humidity, and precipitation.
Note the term relative before the word humidity,
Herein lies the confusion.
Relative humidity is just that – relative.

It is a measure of the amount of water vapor in the air relative to how much the air can hold. Conveniently, it is reported as a percentage between 0% and 100%. These units are comforting to us as they do not require any special scientific understanding to know that 50% is twice as much as 25%.

This is where the easy part ends.
As air warms up, it can hold more moisture.
Conversely, as air cools down, its ability to hold moisture decreases.
Think of this like a sponge.
Warmer air is like a larger sponge that can hold more water.
Colder air is like a smaller sponge that can hold less water.
If both sponges are half filled to capacity with water vapor (half = 50%), the warmer air holds much more moisture.

In both cases, we say that the relative humidity is 50%. Infographic comparing different techniques of describing atmospheric moisture. Brian Brettschneider In the graphic above, an 80°F airmass that is 50% full of water vapor is shown as a sponge that is significantly larger than a 50°F airmass that is also 50% saturated.

This demonstrates why using relative humidity is a terrible metric for surface moisture.
In the previous example, the warmer airmass actually contains 2.7 times as much water vapor as the cooler airmass – even though they both are reporting 50% relative humidity.
Another aspect to this is the (diurnal) trajectory of temperatures throughout the day.

In most instances, the air is coolest in the morning and warmest in the late afternoon. If the amount of water vapor in the air is constant throughout the day, the relative humidity changes dramatically as the temperature rises and falls. This leads to a situation where the same city has a very high relative humidity at one time of day and a very low humidity at another time of the day – even with no change in the amount of moisture in the air.

Daily chart of relative humidity.
Brian Brettschneider A Better Measurement? There are a number of ways to measure the moisture in the air that do not have this issue of relativity.
The most popular is something called the dew point,
While not technically a direct measure of moisture, dew point is a relatable measurement to most people.

In short, the dew point is a temperature value that represents the minimum temperature an airmass can achieve given the amount of moisture in the air. Looking at the sponge diagram, the dew point represents the temperature if the dry part of the sponges (yellow areas) were removed.

There are other measures of moisture not discussed here, they include: specific humidity, mixing ratio, and vapor pressure. There are some magical dew point numbers that represent handy guides for determining how much moisture is in the air. A dew point over 75ׄ°F is very oppressive. It’s the amount of moisture that makes you sweat even at night without any physical exertion.

A dewpoint over 70°F is very moist. In the southeast half of the U.S. in the summer months, this is a common value. A dew point over 60°F is where it starts to “feel humid.” Dew points under 60°F generally feel comfortable. Dew points under 30°F feel notably dry.

Comparison As noted earlier, when looking at relative humidity, Alaska is the most humid state. This is a function of the low temperatures. A cold airmass simply cannot hold a lot of moisture. The average dew point in Alaska is the lowest of all 50 states. This is a truer reflection of the moisture regime.

The two maps below show the 1) average annual relative humidity and 2) the average annual dew point. If you only saw the first map, you would be forgiven for scratching your head in confusion. The desert Southwest looks like most people would expect, but not so much everywhere else.

The second map better comports to our ideas of areas that are more “humid.” Average annual relative humidity using hourly observations. Source: NCEI-ASOS. Brian Brettschneider Average annual dew point using hourly observations. Source: NCEI-ASOS. Brian Brettschneider For those interested in the numbers, here are the statewide averages of relative humidity (RH) and dew point for each state.

A ranking (1=most, 50=least) is also included.

State	Average RH	RH Rank	Average Dew Point	Dew Point Rank
Alaska	77.1%	1	26.5°F	50
Alabama	71.6%	12	54.0°F	5
Arkansas	70.9%	20	50.7°F	9
Arizona	38.5%	49	32.5°F	42
California	61.0%	43	44.2°F	18
Colorado	54.1%	46	28.8°F	46
Connecticut	69.2%	31	40.7°F	27
Delaware	70.9%	21	45.8°F	15
Florida	74.5%	2	62.7°F	2
Georgia	71.1%	17	53.4°F	7
Hawaii	73.3%	5	65.2°F	1
Iowa	72.4%	6	39.8°F	29
Idaho	62.4%	42	30.9°F	43
Illinois	70.9%	18	42.7°F	22
Indiana	72.0%	8	43.0°F	20
Kansas	65.7%	39	43.6°F	19
Kentucky	70.3%	26	46.6°F	14
Louisiana	74.0%	3	58.3°F	3
Massachusetts	71.1%	16	39.9°F	28
Maryland	68.8%	33	45.2°F	17
Maine	71.7%	10	34.4°F	39
Michigan	72.1%	7	38.0°F	33
Minnesota	70.4%	25	33.9°F	40
Missouri	69.2%	30	45.4°F	16
Mississippi	73.6%	4	55.6°F	4
Montana	60.4%	44	29.7°F	45
North Carolina	70.6%	23	50.4°F	10
North Dakota	70.9%	19	32.6°F	41
Nebraska	65.8%	38	37.9°F	34
New Hampshire	70.4%	24	36.2°F	36
New Jersey	68.5%	36	42.4°F	23
New Mexico	45.9%	48	30.8°F	44
Nevada	38.3%	50	27.5°F	48
New York	70.7%	22	39.4°F	31
Ohio	71.5%	13	42.0°F	24
Oklahoma	64.0%	41	46.8°F	13
Oregon	68.6%	35	39.0°F	32
Pennsylvania	69.6%	28	40.9°F	26
Rhode Island	71.4%	15	41.6°F	25
South Carolina	69.1%	32	51.6°F	8
South Dakota	66.4%	37	34.6°F	38
Tennessee	69.4%	29	48.4°F	11
Texas	64.9%	40	53.6°F	6
Utah	51.7%	47	28.6°F	47
Virginia	68.7%	34	47.3°F	12
Vermont	71.7%	9	35.9°F	37
Washington	71.4%	14	39.7°F	30
Wisconsin	71.6%	11	37.1°F	35
West Virginia	69.7%	27	42.8°F	21
Wyoming	57.1%	45	26.9°F	49

Oh The Humidity. Which State Is The Most Humid?

Is 45% humidity very humid?

Summer Humidity – High humidity, over 45 percent, can leave rooms feeling clammy and sticky which can be unbearable. A humidity level of over 50 percent isn’t just uncomfortable, it can also cause health issues and higher HVAC system bills.

Is Alabama the most humid state?

Introduction – The United States has a diverse climate, with some states being more humid than others. The southeastern states, including Florida, Georgia, Alabama, and Mississippi, are some of the most humid states in the country. These states experience high levels of humidity due to their proximity to the Gulf of Mexico and the Atlantic Ocean.

The warm air from these bodies of water carries moisture inland, resulting in humid weather conditions throughout the year. Florida is known for its warm and humid weather, with average humidity levels ranging from 60% to 90%. The state experiences high humidity throughout the year, with the summer months being the most humid.

The humidity in Florida can make the temperatures feel much hotter than they actually are, resulting in a sticky and uncomfortable feeling for residents and tourists. Louisiana is another state that experiences high levels of humidity throughout the year.

The state’s proximity to the Gulf of Mexico and its warm temperatures contribute to its high humidity levels.
In the summer months, the humidity in Louisiana can reach up to 90%, making it difficult to spend time outdoors without feeling uncomfortable.
Mississippi is also located in the southern part of the US and experiences a humid subtropical climate.

The state is surrounded by water bodies such as the Mississippi River and the Gulf of Mexico, which contribute to its high humidity levels. Mississippi also experiences frequent thunderstorms and heavy rainfall, which further add to its high humidity levels.

Georgia is also known for its humid weather conditions, particularly during the summer months. The state’s humid subtropical climate is characterized by hot summers and mild winters, with humidity levels ranging from 50% to 85%. The high humidity levels in Georgia can make it difficult to engage in outdoor activities, especially during the hottest parts of the day.

Alabama is another state in the southern part of the US that experiences high levels of humidity. The state is situated near the Gulf of Mexico, which contributes to its humid subtropical climate. Alabama also experiences frequent thunderstorms and heavy rainfall, particularly during the summer months, which further add to its high humidity levels.


#	State	Average Annual Humidity
1	Mississippi	88.67%
2	Louisiana	88.25%
3	Alabama	85.75%
4	Florida	85.58%
5	Georgia	84.83%
6	Arkansas	84.5%
7	Tennessee	83.8%
8	West Virginia	83.5%
9	North Carolina	82.83%
10	Iowa	82.5%
11	South Carolina	82.5%
12	Michigan	82.38%
13	Missouri	82.25%
14	Minnesota	82.2%
15	Illinois	82%
16	Indiana	82%
17	Wisconsin	81.75%
18	North Dakota	81.5%
19	Ohio	81.13%
20	Kentucky	81%
21	Oklahoma	80.5%
22	New Hampshire	80%
23	Nebraska	79.86%
24	Texas	79.83%
25	Washington	79.33%
26	South Dakota	79.25%
27	Alaska	79%
28	Kansas	78.6%
29	Virginia	78.6%
30	Maine	78.5%
31	Pennsylvania	78.14%
32	Delaware	78%
33	Oregon	78%
34	Hawaii	77.5%
35	Maryland	77%
36	New York	76.44%
37	New Jersey	76%
38	Vermont	76%
39	Connecticut	75.5%
40	Rhode Island	75%
41	Massachusetts	74.67%
42	Montana	69.71%
43	California	67.77%
44	Idaho	67%
45	Wyoming	63.75%
46	Utah	63%
47	Colorado	59.2%
48	New Mexico	57.33%
49	Nevada	56.6%
50	Arizona	52.25%

Is 70 percent humidity high in summer?

Dew Point vs Humidity Dew Point vs. Humidity The dew point is the temperature the air needs to be cooled to (at constant pressure) in order to achieve a relative humidity (RH) of 100%. At this point the air cannot hold more water in the gas form. If the air were to be cooled even more, water vapor would have to come out of the atmosphere in the liquid form, usually as fog or precipitation.

The higher the dew point rises, the greater the amount of moisture in the air.
This directly affects how “comfortable” it will feel outside.
Many times, relative humidity can be misleading.
For example, a temperature of 30 and a dew point of 30 will give you a relative humidity of 100%, but a temperature of 80 and a dew point of 60 produces a relative humidity of 50%.

It would feel much more “humid” on the 80 degree day with 50% relative humidity than on the 30 degree day with a 100% relative humidity. This is because of the higher dew point. So if you want a real judge of just how “dry” or “humid” it will feel outside, look at the dew point instead of the RH.

less than or equal to 55: dry and comfortable between 55 and 65: becoming “sticky” with muggy evenings greater than or equal to 65: lots of moisture in the air, becoming oppressive

: Dew Point vs Humidity

Is Alabama as humid as Florida?

Comparison summary –

Weather	Alabama	Florida	Difference
Hottest month	July: 29.42°C (84.96°F)	August: 29.14°C (84.45°F)	0.28°C (32.5°F)
Coldest month	January: 3.36°C (38.05°F)	January: 11.33°C (52.39°F)	7.97°C (46.35°F)
Wettest month	April: 90.21mm (3.55in)	August: 145.8mm (5.74in)	55.59mm (2.19in)
Driest month	November: 44.56mm (1.75in)	February: 24.0mm (0.94in)	20.56mm (0.81in)

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Is Alabama humid or dry?

Alabama’s generally warm, humid climate results from its mid-latitude location and proximity to the Gulf of Mexico. This location also produces the often-turbulent weather patterns that regularly bring tornadoes and hurricanes to the state. Located within the Humid Subtropical region in the Koppen classification system, Alabama’s climate is characterized by relatively mild winters, hot summers, and year-round precipitation. What Is The Average Relative Humidity During The Summer In Birmingham Alabama Tornado in Marshall County One of the most important factors in determining Alabama’s climate patterns is its mid-latitude location (the boundaries of the state extend from approximately 30° to 35° north latitude and 85° to 88.5° west longitude). This location, in conjunction with the Earth’s orbit around the Sun and its axial tilt of 23.5° relative to the Sun, produces variations in day length and temperature patterns throughout the year that result in an annual cycle of four distinct seasons.

For example, day length for the city of Montgomery, Montgomery County, which is located near the geographic center of the state, varies from a minimum of approximately 10 hours in December to a maximum of approximately 14 hours in June.
Montgomery’s average minimum daily temperature in January is approximately 35.8° F and its average maximum daily temperature in July is approximately 93° F.

The highest temperature reported in the state appears to be 112° F at Centreville, Bibb County, on September 5, 1925, and the lowest appears to be -27° F at New Market, Madison County, on January 30, 1966. Temperatures tend to be slightly higher in the southern half of the state than in the northern half, as can be seen in a comparison of temperature records for the cities of Mobile, Mobile County, and Huntsville, Madison County.

Mobile, located in the south, has an average minimum daily temperature in January of approximately 39.9° F, whereas Huntsville, located in the north, has an average minimum daily temperature in January of approximately 29.3° F.
Mobile has an average maximum daily temperature in July of approximately 91.2° F, whereas Huntsville has an average maximum daily temperature in July of approximately 86.5° F.

Precipitation What Is The Average Relative Humidity During The Summer In Birmingham Alabama Alabama Rainstorm Precipitation patterns tend to be higher in the southern half of the state than in the northern half, with the Mobile area averaging up to 65.9 inches and the Huntsville area averaging 57.0 inches. In south Alabama, higher temperatures and precipitation patterns combine to produce a considerable difference in the length of the growing season for agricultural production across the state, which varies from approximately 200 days per year in the north to approximately 250 days per year in the South.

The variation in temperature and precipitation patterns from the north to the south is largely owing to the influence of the Gulf of Mexico, which is possibly the second-most important factor in determining Alabama’s climate patterns. In addition to serving as a source of moisture, this large body of warm water stores energy absorbed from the Sun throughout the year, which helps moderate temperature patterns along the coast.

This influence on local temperature patterns is commonly known as the Maritime Effect. What Is The Average Relative Humidity During The Summer In Birmingham Alabama Alabama Snow In summer, a large mass of warm, moist air, known as a maritime tropical air mass, moves northward from the Gulf of Mexico and dominates daily weather patterns in Alabama. In autumn, the polar jet stream begins to migrate southward and directs cool, dry air masses, known as Continental Polar air masses, into the state.

The leading edge of the continental polar air mass is referred to as a cold front, and these fronts move across Alabama at a rate of about one per week until spring, when the polar jet stream begins to migrate northward.
When a cold front moves across Alabama, the cold, dry air forces the warm, moist air of the Maritime Tropical air mass upward into the atmosphere.

The moisture in the warm air soon condenses and returns to the surface as precipitation. As the cold front passes overhead, the cold, dry air mass moves into the region and dominates daily weather patterns for several days. Cold, sunny weather usually prevails until the next cold front moves into the region.

The precipitation that normally occurs when the cold front passes is usually in the form of intense rainfall; however, it occasionally occurs as snowfall. Snowfall is more common in the northern region of the state than in the south, but snow is still a relatively rare phenomenon in Alabama. The highest recorded amount of snowfall during a 24-hour period appears to be 13 inches on March 12-13, 1993, at Birmingham,

Weather Hazards What Is The Average Relative Humidity During The Summer In Birmingham Alabama Enterprise Tornado Tornadoes are one of the deadliest weather hazards in Alabama. They are commonly associated with the passage of cold fronts because the interaction of the cold, dry air mass and the warm, moist air mass produces an area of unstable weather conditions along the cold front that are ideal for tornado formation.

This area of unstable atmospheric conditions is known as the Squall Line. Alabama averages approximately 20 tornadoes per year. The most common months for tornado formation in the state are March, April, and November, but they occur throughout the year. Alabama is unusual in that it has both a spring and an autumn tornado season.

Tornadoes can occur at any time of the day, but they are most common between 10 a.m. and 8 p.m., with the peak time at approximately 5 p.m. The two most common areas for tornado activity in Alabama are the north-central region around Birmingham and the southwest region around Mobile.

Tornado activity in the Mobile area is partially related to hurricanes making landfall along the coast, as hurricanes are commonly known to produce tornadoes as they come ashore. The worst overall tornado disaster in the state was the Dixie Tornado Outbreak of April 27, 2011. The event, according to preliminary data, produced 268 tornadoes throughout the United States on a single day and set the record for most lives claimed in a single day, at 314.

More than 50 tornadoes were reported in north and central Alabama, claiming 238 lives. The highest number of deaths occurred in Tuscaloosa County (39), DeKalb County (33), and Franklin County (27). Initial surveys indicate that eight of these tornadoes were rated EF4 and two were rated EF5 on the Enhanced Fujita Scale (a 2007 updated version of the classic Fujita Scale of tornado intensity).

Two of the worst individual tornado disasters in the state occurred on the same day as part of the famous Super Tornado Outbreak of April 3 and 4, 1974, which produced 148 tornadoes and affected 13 states across the South and Midwest.
On the evening of April 3, two F5 tornadoes on the Fujita Scale hit Tanner approximately 30 minutes apart and left 55 dead.

Later that same evening, another F5 tornado hit Guin and left 23 dead. Other notable tornado disasters in Alabama include the Birmingham tornado of April 15, 1956 (25 deaths); the Huntsville tornado of November 15, 1989 (21 deaths); the Palm Sunday tornado that destroyed the Goshen United Methodist Church in Cherokee County on March 27, 1994 (20 deaths); and the Oak Grove tornado of April 8, 1998, (32 deaths).

Hurricanes are arguably the most important weather hazard in the state in terms of economic damage. Hurricanes are members of a category of meteorological events known as tropical cyclones. More specifically, a tropical cyclone with a sustained wind speed of 39–73 mph is classified as a “tropical storm” and a tropical cyclone with a sustained wind speed of 74 mph or greater is classified as a “hurricane.” The tropical cyclone season in Alabama extends from May to October, with September being the peak month.

Tropical cyclones hit Alabama at an average rate of approximately once every 1.5 years. Hurricanes (i.e., storms with sustained wind speeds of 74 mph or greater) hit Alabama approximately once every 7.5 years. Fortunately, most of the tropical cyclones (tropical storms and hurricanes) that hit Alabama actually make landfall in another state, which helps reduce the amount of damage reported in the state. What Is The Average Relative Humidity During The Summer In Birmingham Alabama Hurricane Ivan Two of the most infamous hurricanes to make landfall along the Alabama coast were Frederic in 1979 and Ivan in 2004. Hurricane Frederic was a category 4 on the Saffir-Simpson scale when it crossed Dauphin Island on the evening of September 12, 1979.

The official wind speed at the time of landfall was estimated to be 132 mph, but an unofficial wind speed of approximately 145 mph was reported on the bridge that crosses over to the island. The total cost of the damage in Alabama was estimated at $1.4 billion. Hurricane Ivan was a category 3 on the Saffir-Simpson scale when it made landfall at Gulf Shores, Baldwin County, on the evening of September 15, 2004.

The official wind speed at landfall was estimated to be approximately 120 mph. The total cost of the damage in Alabama was estimated at $3 billion. Alabama’s relatively mild climate is a major factor in two of the state’s most important economic activities: agriculture and tourism,

For example, the Gulf Coast is an attractive destination during the winter months for vacationers fleeing harsh conditions in the northern United States.
The pleasant experience of a warm, mild winter convinces many of these people to make Alabama their permanent home upon retirement.
Additional Resources Carter, E.A., and V.G.

Seaquist. Extreme Weather History and Climate Atlas for Alabama, Huntsville, Ala.: Strode, 1984. Evans, C.M. The Complete Guide to Alabama Weather, Birmingham, Ala.: Seacoast Publishing, 1999.

Is 80% humidity very humid?

Do you feel like you’re never comfortable at home, even though the AC reaches the set temperature? Your home’s humidity level may be too high. A home should have a relative humidity of 30% to 60%, Above 60% and you have what’s considered “high” humidity. Besides being less comfortable, high humidity causes a host of other problems in your home, including:

Growth of fungus and mold in various parts of the homeBubbling and peeling wall paperWood rot in furnitureMusty odorsAggravation of allergies and asthma due to increased number of dust mites

We’ll discuss what can cause a home to be overly humid and how to test your home for high humidity.

Is inside humidity 60% in summer?

Effects of High Indoor Humidity Levels – Soaring summer heat can put a damper on outdoor activities but excessive humidity can also creep into your home and affect your comfort, your health and your property. When you lower your thermostat temperature because you are feeling overheated due to high indoor humidity levels, your utility bills can go through the roof.

That’s because the damp, muggy feeling can cause you to feel warmer. Example: If the air temperature is 75°F and the relative humidity is zero percent, then our body perceives the air temperature to feel more like 69°F. Now if the air temperature is 75°F degrees and the relative humidity is 100 percent, then it will feel closer to 80°F.

(Source: HowStuffWorks.com ) Too much home humidity can also create a breeding ground for mold and bacteria that can decrease air quality, aggravating allergy or asthma symptoms. (Learn more about how to improve indoor air quality,) Excessive moisture in the air can also be the source of a myriad of problems with your home’s furnishings and even cause structural damage.

Poor quality of sleepDoors and windows stickDust mitesWilted plantsSmelly plantsPeeling paint or wallpaper

So what is the best indoor humidity for your home and how can you manage it? Most experts say that the ideal house humidity should be between 30 and 50 percent, but definitely below 60 percent in the summer months.

Is 50 percent humidity humid?

What are Normal Humidity Levels? – Humidity is the measure of the level of moisture vapor suspended in the air around you. Although you can’t see it, it’s still there. The ideal relative humidity for health and comfort is somewhere between 30-50% humidity, according to the Mayo Clinic, This means that the air holds between 30-50% of the maximum amount of moisture it can contain.

Is 81% humidity humid?

Before you crank up the AC, try a little humidity control

By Jessie Milligan, McClatchy Newspapers
Should you crank up your air conditioner when the house feels a bit stuffy?
Not so fast.

Summer can be the most humid months, with 80 to 90 percent humidity outside. Indoors, humidity levels of about 30 percent to 50 percent are considered comfortable.

The temptation is to crank up the AC when it feels stuffy inside. AC does help drop humidity, and the humidity that remains isn’t nearly as bothersome when the air temperature is cool
But there are less-expensive ways to make the indoors more livable. Try these four steps to help control humidity:
1. Check humidity levels
Indoor humidity levels higher than 50 percent can cause mildew, condensation, mold, pest damage and allergies.
Digital weather stations, costing from $50 upward, monitor indoor humidity and are available at hardware and home improvement stores.
2. Try some low-cost steps

Reduce water use in your home on muggy days. The more water you use, the more water will be in the air. Turn on bathroom, kitchen and laundry room fans when those rooms are in use. They’ll move excess water outside. Take your houseplants outdoors for the summer.

Water taken in at the roots passes through the leaves and into the air.3. Buy a dehumidifier Few differences exist between major brand-name portable dehumidifiers, Consumer Reports says. It recommends buying the largest-capacity dehumidifier you can afford. A small dehumidifier pulls about 25 pints of water out of the air in 24 hours; a large one draws out about 50 pints.

Consumer Reports says the large one gets quicker results.

Portable dehumidifiers cost about $140 to $300 depending on size.
4. Do a construction check
Make sure the clothes dryer is vented to the outside; damp air will raise humidity levels.

Control plumbing leaks. The water evaporates into the air. Outdoor water use raises indoor humidity levels, so check for leaks inside and outside. Make sure the house is properly insulated. Insulation will keep outdoor dampness from coming in, and it will breathe enough to let moisture out. SOURCES: Texas A&M University, Consumer Reports : Before you crank up the AC, try a little humidity control

Is 40% humidity humid?

Understanding Humidity – In order to learn how to spot low humidity in your home and how to increase the humidity, it’s important to have a firm understanding of relative humidity. Relative humidity refers to the amount of water vapor in the air relative to the current temperature.

Warm air holds more water vapor than cold air.
This means that a cold home with 50 percent relative humidity may actually have the same amount of water vapor in the air as a warm home with 40 percent relative humidity, despite the difference in relative humidity.
The percentage of water vapor in the air is used to express the relative humidity in your home based on the current temperature.

If the humidity is over 60 percent, then the air is considered to have a high relative humidity level. If the humidity is under 40 percent, then the air is considered to have a low relative humidity level. For instance, if the relative humidity is 50 percent, then the air is currently holding only half of the water vapor that it could, while a humidity level of 25 percent means the air currently contains just a quarter of the water vapor that it could potentially hold.

Is 46% humidity humid?

Anything under 30% is too dry, and over 50% is too high.

What does 70 degrees with 70% humidity feel like?

If you watch any weather at all during the summer, you probably hear the meteorologists refer to the heat index. It’s a measure of the “feels like” temperature, a combination of the actual air temperature and the humidity. Regardless of how hot or cold it is, humidity makes a difference in how comfortable we feel indoors and out.

How It Works The human body uses evaporation to stay comfortable in warm weather, much like cool off by panting.
When the humidity level increases along with temperature, it’s harder for the moisture to dry, and you feel warmer.
When the air indoors is 75 degrees and the humidity is 30 percent, the air actually feels like 73 degrees.

Conversely, 70 percent humidity makes the air feel like 77 degrees. The process reverses in the winter. The air can’t hold as much moisture at lower temperatures, and as a consequence, air below 30 percent makes you feel cooler than it really is. Controlling indoor humidity in the summer is critical for a comfortable “feels like” temperature.

Moisture in the air increases heat retention year-round, something you don’t want in the summer. The ideal range in the summer lies between 30 and 50 percent. Central cooling systems remove some of the humidity, but sometimes the humidity in this region exceeds the ability of your cooling system to remove it.

If the humidity gets too high, you run the risk of a frozen evaporator coil for the A/C, which can cause serious damage to your cooling equipment. Managing Humidity Dehumidifiers remove humidity independent of air conditioning, and you can find central and portable units.

Unless your home is fairly small, it’s much simpler and more energy efficient to install a whole-house system that removes water vapor.
A central system attaches to your HVAC system, is controlled by a humidistat, and automatically drains condensation into your home’s plumbing.
Excessive indoor humidity increases the “feels like” temperature of your home, and you’ll save money and wear on your cooling system by managing it.

To learn more, contact Detmer and Sons, providing HVAC services for Dayton-area homeowners. Our goal is to help educate our customers in Dayton, Ohio about energy and home comfort issues (specific to HVAC systems). Credit/Copyright Attribution: “Oakozhan/Shutterstock”

What does 100 humidity feel like?

Have You Ever Wondered. –

What is humidity? What’s the difference between absolute and relative humidity? Why does it feel hotter when it’s humid?

“It’s not the heat, it’s the humidity!” Have you ever heard someone say that on a warm, muggy day? As you’ll see soon, there’s a lot of truth in that statement. To understand humidity, you first have to realize that there’s water in the air all around you.

But I’m not wet!” you might say.
That’s true.
Most of the air around you has water in the form of a gas called water vapor,
Humidity is the amount of water vapor in the air.
Too much or too little humidity can be dangerous.
For example, high humidity combined with hot temperatures is a combination that can be a health risk, especially for the very young and the very old.

Humidity plays an important role in our daily weather, Without water vapor in the air, our weather might be like the weather on Mars, Could you imagine life without clouds, rain, snow, thunder, or lightning ? When you hear weather forecasters talk about humidity, you may hear them talk about two different terms: absolute humidity and relative humidity.

Absolute humidity is the amount of water vapor divided by the amount of dry air in a certain volume of air at a particular temperature.
The hotter the air is, the more water vapor it can hold.
Relative humidity is the ratio of the current absolute humidity to the highest possible absolute humidity, which will depend upon the current air temperature.

Relative humidity is the term weather forecasters use most often. A relative humidity of 100% means that the air can’t hold any more water vapor. It’s totally saturated. When this occurs, it can rain, In fact, the relative humidity must be 100% where clouds are forming for it to rain.

However, at ground level where the rain lands, the relative humidity can be less than 100%. So how does humidity affect us on a hot day? Humans are sensitive to changes in humidity, because our skin uses the air around us to get rid of moisture in the form of sweat, If the relative humidity is very high, the air is already saturated with water vapor and our sweat won’t evaporate.

When this happens, we feel hotter than the actual temperature. Likewise, very low humidity can make us feel cooler than the actual temperature. This happens because the dry air helps sweat evaporate more quickly than usual. If the temperature outside is 75° F (23.8° C), humidity can make it feel warmer or cooler.

A relative humidity of 0% would make it feel like it’s only 69° F (20.5° C).
On the other hand, a relative humidity of 100% would make it feel like it’s 80° F (26.6° C).
So what’s a comfortable humidity level? Studies have shown that we tend to feel most comfortable at a relative humidity of around 45%.

Some people use special machines called humidifiers (add humidity) or dehumidifiers (remove humidity) to keep indoor humidity at a comfortable level.

What does 80% humidity mean?

Colder air cannot handle as much moisture as warmer air. Temperature in relation to humidity is important, especially as we spend 90% of our time indoors. Consider for example a winters day. The outdoor air could have a 100% relative humidity at 41°F, and therefore contain 0.2 grams of water.

Indoors however, 41°F would be very uncomfortable, so we would warm it up.
When the outdoor air is heated up to 73°F indoors, the absolute amount of water in the air is still the same.
But since warmer air can hold more water, the relative humidity goes down to 33%.
On the other hand, warm air can handle more moisture than cooler air.

For example, a warm and humid summer with 80% humidity at 86°F, would mean that the outdoor air contained 0.8oz/m3 of water. In our homes, 86°F would be very uncomfortable so many would use air conditioners to cool it down again. If you cool it down to below 78.8°F, the relative humidity level goes to 100% and the water condenses (The dew point).

Is Alabama humid all year?

In much of Alabama, the climate is humid subtropical, with mild, rainy winters, during which short cold spells can occur, and hot, muggy summers, with many hours of sunshine but also with rains and thunderstorms. In the north, along the Tennessee River (see Huntsville, Florence, Decatur, Scottsboro), where the winter is a bit colder, the climate can be defined as temperate.

Alabama is a state in the southeastern United States and has an area of 131,426 sq km (50,744 sq mi). It borders Mississippi, Tennessee, Georgia and Florida, while in the south, there is a coastal stretch of about 90 km (55 mi) that overlooks the Gulf of Mexico. The state is largely occupied by plains, although there are hills in the center-north.

The highest point is Mount Chehaha, 735 meters (2,411 feet) high. The capital is Montgomery, while the largest city is Birmingham. The Alabama River, which passes near the capital, joins the Tombigbee River in the south of the state, creating the Mobile River, which flows into the sea at the city of the same name.

Mobile overlooks a bay, south of which are a barrier island, Dauphin Island, and a peninsula, Mobile Point.
Further east, we find islands, inland bays (such as Wolf Bay and Perdido Bay) and peninsulas.
On the coast, near towns like Golf Shores and Orange Beach, there are long beaches.
The state extends from 30 to 35 degrees north latitude, and often receives warm, humid currents from the Gulf of Mexico which, however, collide with colder, drier air masses from the west, and sometimes even from Canada.

The clash of air masses can cause sudden changes in temperature, thunderstorms (sometimes accompanied by hail) and abundant rainfall, except in summer, when sultry heat prevails, although thunderstorms can still break out. The average temperature in January ranges from 6 °C (43 °F) in the north to 11 °C (52 °F) on the southern coast, that of July is of 27.5 °C (81.5 °F) in the north and of 28/28.5 °C (82.5/83 °F) in the center-south.

Huntsville – Average temperatures (1991-2020)

Month	Min (°C)	Max (°C)	Mean (°C)	Min (°F)	Max (°F)	Mean (°F)
January	0.6	11.3	5.9	33	52	42.7
February	2.4	13.9	8.2	36	57	46.8
March	6.1	18.6	12.4	43	66	54.2
April	10.6	23.8	17.2	51	75	62.9
May	15.7	28.1	21.9	60	82	71.4
June	20	31.7	25.9	68	89	78.6
July	21.7	33.1	27.4	71	92	81.3
August	20.9	32.9	26.9	70	91	80.5
September	17.4	30.3	23.9	63	86	75
October	11	24.4	17.7	52	76	63.9
November	5.1	17.7	11.4	41	64	52.6
December	2.2	12.8	7.5	36	55	45.4
Year	11.2	23.3	17.2	52.2	73.9	63

And here are the average temperatures in Mobile, which is located in the south, near the coast.

Mobile – Average temperatures (1991-2020)

Month	Min (°C)	Max (°C)	Mean (°C)	Min (°F)	Max (°F)	Mean (°F)
January	4.8	16.4	10.6	41	62	51.1
February	6.9	18.7	12.8	44	66	55
March	10	22.1	16.1	50	72	60.9
April	13.3	25.4	19.4	56	78	66.9
May	17.7	29.4	23.5	64	85	74.4
June	21.6	31.9	26.7	71	89	80.1
July	22.8	32.7	27.8	73	91	82
August	22.7	32.7	27.7	73	91	81.8
September	20.4	30.8	25.6	69	88	78.2
October	14.6	26.5	20.5	58	80	69
November	8.7	21.2	15	48	70	59
December	6.1	17.5	11.8	43	64	53.2
Year	14.2	25.5	19.8	57.5	77.9	67.5

Precipitation in Alabama is abundant, since it hovers around 1,300/1,400 millimeters (51/55 inches) per year in the center-north, while in the south (see Mobile) it reaches 1,700 mm (56 in). There are no dry seasons, however the wettest seasons are winter and spring in the north, and summer in the south, due to afternoon thunderstorms but also to the contribution made by hurricanes and tropical storms (see below).

Birmingham – Average precipitation

Month	Millimeters	Inches	Days
January	130	5.1	10
February	125	4.9	11
March	145	5.7	11
April	130	5.1	9
May	125	4.9	10
June	120	4.7	11
July	140	5.5	12
August	110	4.3	11
September	100	3.9	7
October	85	3.3	7
November	105	4.1	8
December	125	4.9	10
Year	1440	56.7	118

Even though the winter is mild, there may be cold waves, usually of short duration, more intense in the north. On the coldest days of the year, the temperature generally drops to -12/-13 °C (8/10 °F) in the north and to -6/-7 °C (19/21 °F) in the south. Alabama is a sunny state, although not as sunny as Florida or the deserts of the southwest. On average, there are 2,600/2,700 hours of sunshine per year. Here are the average sunshine hours per day in Montgomery,

Montgomery – Sunshine hours

Month	Average	Total
January	5	155
February	6	165
March	7	220
April	8.5	250
May	8.5	265
June	8.5	260
July	8.5	260
August	8	250
September	7.5	225
October	7.5	230
November	5.5	170
December	5	155
Year	7.2	2610

The sea temperature ranges between 17 °C (63 °F) and 30 °C (85 °F). The sea is warm enough for swimming from May to October or November, while in winter it is a bit cold. Here are the average sea temperatures near Mobile.

Mobile – Sea temperature

Month	Celsius (°C)	Fahrenheit (°F)
January	18	64
February	17	63
March	18.5	65
April	21	69
May	24.5	76
June	28	82
July	29.5	85
August	29.5	85
September	28.5	83
October	25	77
November	22	71
December	19.5	67
Year	23.4	74.2

In spring and early summer, generally from April to June, and more rarely in autumn, tornadoes may develop, due to the collision of air masses. Alabama is located in a particularly endangered area, the so-called “Dixie Alley”. The north is the most affected area, while the coast is the least affected.

Alabama is also exposed to the risk of hurricanes coming from the Gulf of Mexico.
The area most at risk is the coast, which can receive storm surges, moreover, hurricanes weaken when they penetrate inland, however, they can still bring abundant rainfall.
Hurricane season runs from June to November, although they are more likely from August to October, with a peak in September.

The hurricane that caused the most severe damage in Alabama was Frederic in September 1979. After 2000, hurricanes that had a significant impact on the coast were Ivan in September 2004, Katrina in August 2005 (although it hit most directly Louisiana), Sally in September 2020, and Zeta at the end of October 2020.

Is Alabama a tropical climate?

The Alabama climate is temperate, with an average annual temperature of about 64 °F (18 °C), mellowed by altitude to some 60 °F (16 °C) in the northern counties and reaching 67 °F (19 °C) in the southern counties, although summer heat is often alleviated somewhat by the winds blowing in from the Gulf of Mexico,

Occasionally the temperature may rise to 100 °F (38 °C) in the summer, whereas frosts occur with more frequency; snow may sometimes fall in the northern counties. The average summer temperature is 79 °F (26 °C); the winter average is 48 °F (9 °C). Precipitation is fairly evenly distributed throughout the year, with an annual average of 56 inches (1,420 mm) and a concentration on the coast.

Droughts are infrequent. These favourable conditions have given the state a long growing season, ranging from about 200 days in the north to some 300 days in the south. Alabama is subject to severe weather, especially during the warmer months. In late summer and early fall, southern areas can be hit by strong tropical storms, including hurricanes as they sweep northward from the Gulf; Hurricanes Camille (1969) and Katrina (2005) were especially devastating to coastal areas.

The northern half of the state lies in the southern range of the country that is most affected by tornadoes. Occasionally, large-scale outbreaks of multiple tornadoes have turned particularly deadly and destructive in the region, as they did in April 1974 and in April 2011, Charles Goode Gomillion Robert J.

Norrell The Editors of Encyclopaedia Britannica

Does it get humid in Alabama?

As a state which touches the Gulf, Alabama’s climate is in large part driven by the moisture that evaporates from these waters, providing humid air which bathes the state for much of the year. With abundant moisture available, Alabama’s average annual precipitation totals about 54 inches.