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Climate and Average Weather Year Round in Alabama New York, United States

In Alabama, the summers are warm and partly cloudy and the winters are freezing, snowy, windy, and mostly cloudy. Over the course of the year, the temperature typically varies from 19°F to 79°F and is rarely below 4°F or above 85°F.

Based on the tourism score, the best time of year to visit Alabama for warm-weather activities is from late June to early September.

Climate in Alabama

freezingvery coldcoldcoolwarmcoolcoldvery coldJanFebMarAprMayJunJulAugSepOctNovDecNowNow66%66%29%29%clearovercastprecipitation: 2.9 inprecipitation: 2.9 in1.2 in1.2 inmuggy: 29%muggy: 29%0%0%drydrytourism score: 7.0tourism score: 7.00.00.0
Alabama weather by month. Click on each chart for more information.

The warm season lasts for 3.6 months, from May 29 to September 18, with an average daily high temperature above 69°F. The hottest month of the year in Alabama is July, with an average high of 78°F and low of 63°F.

The cold season lasts for 3.3 months, from December 3 to March 13, with an average daily high temperature below 40°F. The coldest month of the year in Alabama is January, with an average low of 20°F and high of 32°F.

Average High and Low Temperature in Alabama

Average High and Low Temperature in AlabamawarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2930°FJan 2930°FJul 1979°FJul 1979°F19°F19°F63°F63°FMay 2969°FMay 2969°FSep 1869°FSep 1869°FDec 340°FDec 340°FMar 1340°FMar 1340°F53°F53°F54°F54°F29°F29°F26°F26°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 32°F33°F42°F54°F65°F74°F78°F77°F70°F58°F47°F37°F
Temp. 25°F26°F34°F45°F56°F65°F70°F69°F62°F51°F41°F31°F
Low 20°F21°F28°F38°F49°F58°F63°F61°F55°F44°F35°F26°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Alabama

Average Hourly Temperature in AlabamaJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoldcoolcomfortablecomfortablewarmfreezing
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Ichinohe, Japan (6,177 miles away) is the far-away foreign place with temperatures most similar to Alabama (view comparison).

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In Alabama, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Alabama begins around May 4 and lasts for 6.0 months, ending around November 5.

The clearest month of the year in Alabama is August, during which on average the sky is clear, mostly clear, or partly cloudy 66% of the time.

The cloudier part of the year begins around November 5 and lasts for 6.0 months, ending around May 4.

The cloudiest month of the year in Alabama is January, during which on average the sky is overcast or mostly cloudy 70% of the time.

Cloud Cover Categories in Alabama

Cloud Cover Categories in AlabamaclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 866%Aug 866%Jan 1129%Jan 1129%May 448%May 448%Nov 548%Nov 548%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 70%66%59%54%51%45%38%34%38%45%56%65%
Clearer 30%34%41%46%49%55%62%66%62%55%44%35%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Alabama varies throughout the year.

The wetter season lasts 8.6 months, from March 23 to December 11, with a greater than 27% chance of a given day being a wet day. The month with the most wet days in Alabama is June, with an average of 10.4 days with at least 0.04 inches of precipitation.

The drier season lasts 3.4 months, from December 11 to March 23. The month with the fewest wet days in Alabama is February, with an average of 5.2 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Alabama is June, with an average of 10.4 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 37% on June 13.

Daily Chance of Precipitation in Alabama

Daily Chance of Precipitation in AlabamawetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jun 1337%Jun 1337%Jan 3117%Jan 3117%Mar 2327%Mar 2327%Dec 1127%Dec 1127%NowNowsnowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 2.8d2.3d4.9d8.0d9.6d10.4d10.5d10.0d9.8d9.8d7.2d4.9d
Mixed 1.0d0.9d1.0d0.5d0.0d0.0d0.0d0.0d0.0d0.0d0.7d1.3d
Snow 2.2d2.0d1.6d0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.5d1.9d
Any 6.0d5.2d7.5d8.7d9.6d10.4d10.5d10.0d9.8d9.9d8.4d8.0d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Alabama experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Alabama. The month with the most rain in Alabama is September, with an average rainfall of 2.8 inches.

The month with the least rain in Alabama is February, with an average rainfall of 0.7 inches.

Average Monthly Rainfall in Alabama

Average Monthly Rainfall in AlabamaJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inSep 262.9 inSep 262.9 inFeb 70.7 inFeb 70.7 inJun 42.6 inJun 42.6 inJul 262.6 inJul 262.6 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 0.8″0.7″1.2″2.1″2.4″2.6″2.6″2.4″2.8″2.6″2.0″1.3″

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Alabama experiences significant seasonal variation in monthly snowfall.

The snowy period of the year lasts for 5.3 months, from November 7 to April 16, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Alabama is February, with an average snowfall of 5.7 inches.

The snowless period of the year lasts for 6.7 months, from April 16 to November 7. The least snow falls around August 3, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Alabama

Average Monthly Snowfall in AlabamasnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 inFeb 296.1 inFeb 296.1 inAug 30.0 inAug 30.0 inJan 85.4 inJan 85.4 inNov 71.0 inNov 71.0 inApr 161.0 inApr 161.0 inNowNow
The average snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Snowfall 5.2″5.7″4.9″1.1″0.0″0.0″0.0″0.0″0.0″0.1″1.7″4.8″

The length of the day in Alabama varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 0 minutes of daylight; the longest day is June 20, with 15 hours, 23 minutes of daylight.

Hours of Daylight and Twilight in Alabama

Hours of Daylight and Twilight in AlabamaJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 1912 hr, 8 minMar 1915 hr, 23 minJun 2015 hr, 23 minJun 2012 hr, 11 minSep 2212 hr, 11 minSep 229 hr, 0 minDec 219 hr, 0 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 9.4h10.5h12.0h13.5h14.7h15.3h15.0h13.9h12.5h11.0h9.7h9.1h

The earliest sunrise is at 5:33 AM on June 14, and the latest sunrise is 2 hours, 17 minutes later at 7:50 AM on November 2. The earliest sunset is at 4:38 PM on December 8, and the latest sunset is 4 hours, 19 minutes later at 8:57 PM on June 26.

Daylight saving time (DST) is observed in Alabama during 2024, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3.

Sunrise & Sunset with Twilight and Daylight Saving Time in Alabama

Sunrise & Sunset with Twilight and Daylight Saving Time in AlabamaJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 145:33 AMJun 145:33 AM8:57 PMJun 268:57 PMJun 26Dec 84:38 PMDec 84:38 PM7:50 AMNov 27:50 AMNov 2Mar 10DSTMar 10DSTDSTNov 3DSTNov 3daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Alabama

Solar Elevation and Azimuth in AlabamaJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM00010101010202020303030404050606000010101020202020303040405050602370NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases in Alabama

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Alabama experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.3 months, from June 9 to September 18, during which time the comfort level is muggy, oppressive, or miserable at least 7% of the time. The month with the most muggy days in Alabama is July, with 7.9 days that are muggy or worse.

The least muggy day of the year is February 29, when muggy conditions are essentially unheard of.

Humidity Comfort Levels in Alabama

Humidity Comfort Levels in AlabamamuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 290%Feb 290%Jul 2929%Jul 2929%Jun 97%Jun 97%Sep 187%Sep 187%muggymuggycomfortablecomfortabledrydryoppressiveoppressive
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.0d0.0d0.0d0.0d0.3d3.3d7.9d7.0d2.6d0.2d0.0d0.0d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Alabama experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 4.8 months, from November 7 to April 1, with average wind speeds of more than 8.5 miles per hour. The windiest month of the year in Alabama is January, with an average hourly wind speed of 11.2 miles per hour.

The calmer time of year lasts for 7.2 months, from April 1 to November 7. The calmest month of the year in Alabama is August, with an average hourly wind speed of 5.8 miles per hour.

Average Wind Speed in Alabama

Average Wind Speed in AlabamawindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mphJan 1711.3 mphJan 1711.3 mphAug 35.6 mphAug 35.6 mphNov 78.5 mphNov 78.5 mphApr 18.5 mphApr 18.5 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 11.210.79.37.86.45.95.85.86.57.68.810.1

The predominant average hourly wind direction in Alabama is from the west throughout the year.

Wind Direction in Alabama

Wind Direction in AlabamaJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Alabama is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 2.8 months, from June 30 to September 22, with an average temperature above 65°F. The month of the year in Alabama with the warmest water is August, with an average temperature of 71°F.

The time of year with cooler water lasts for 5.2 months, from December 6 to May 11, with an average temperature below 43°F. The month of the year in Alabama with the coolest water is March, with an average temperature of 36°F.

Average Water Temperature in Alabama

Average Water Temperature in AlabamawarmcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°FAug 772°FAug 772°F36°FMar 636°FMar 6Jun 3065°FJun 3065°FSep 2265°FSep 2265°FDec 643°FDec 643°FMay 1143°FMay 1143°F
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 38°F36°F36°F38°F45°F58°F69°F71°F66°F57°F48°F42°F

To characterize how pleasant the weather is in Alabama throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Alabama for general outdoor tourist activities is from late June to early September, with a peak score in the second week of August.

Tourism Score in Alabama

Tourism Score in Alabamabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.07.00.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Alabama for hot-weather activities is from early July to mid August, with a peak score in the third week of July.

Beach/Pool Score in Alabama

Beach/Pool Score in Alabamabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.05.00.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Alabama typically lasts for 6.0 months (185 days), from around April 21 to around October 23, rarely starting before April 6 or after May 7, and rarely ending before October 5 or after November 10.

Time Spent in Various Temperature Bands and the Growing Season in Alabama

Time Spent in Various Temperature Bands and the Growing Season in Alabamagrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Apr 2150%Apr 2150%Oct 2350%Oct 2390%May 790%May 790%Oct 590%Oct 510%Apr 610%Apr 610%Nov 1010%Nov 100%Feb 50%Feb 5Jul 27100%Jul 27100%NowNowfreezingvery coldcoolcomfortablewarmcold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Alabama should appear around April 27, only rarely appearing before April 15 or after May 9.

Growing Degree Days in Alabama

Growing Degree Days in AlabamaJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°FApr 2790°FApr 2790°FJul 5900°FJul 5900°FAug 191,800°FAug 191,800°FDec 312,561°FDec 312,561°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.6 months, from May 2 to August 21, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest month of the year in Alabama is June, with an average of 6.8 kWh.

The darker period of the year lasts for 3.6 months, from October 31 to February 16, with an average daily incident shortwave energy per square meter below 2.4 kWh. The darkest month of the year in Alabama is December, with an average of 1.3 kWh.

Average Daily Incident Shortwave Solar Energy in Alabama

Average Daily Incident Shortwave Solar Energy in AlabamabrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 286.9 kWhJun 286.9 kWhDec 231.3 kWhDec 231.3 kWhMay 25.8 kWhMay 25.8 kWhAug 215.8 kWhAug 215.8 kWhOct 312.4 kWhOct 312.4 kWhFeb 162.4 kWhFeb 162.4 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 1.52.43.75.16.26.86.75.94.73.11.91.3

For the purposes of this report, the geographical coordinates of Alabama are 43.096 deg latitude, -78.391 deg longitude, and 640 ft elevation.

The topography within 2 miles of Alabama contains only modest variations in elevation, with a maximum elevation change of 161 feet and an average elevation above sea level of 654 feet. Within 10 miles contains only modest variations in elevation (561 feet). Within 50 miles contains significant variations in elevation (1,959 feet).

The area within 2 miles of Alabama is covered by cropland (75%) and trees (23%), within 10 miles by cropland (57%) and trees (30%), and within 50 miles by water (35%) and cropland (27%).

This report illustrates the typical weather in Alabama, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Alabama.

For each station, the records are corrected for the elevation difference between that station and Alabama according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Alabama is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Alabama and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Alabama and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.