Climate and monthly weather forecastHuntsville, AL

Climate and monthly weather forecast
The climate of Huntsville
Huntsville, Alabama is characterized by a Humid Subtropical climate according to the Köppen climate classification - specifically Cfa, indicating no dry season. Geographically, Huntsville is situated in the southeastern United States. The climate is largely influenced by the Gulf of Mexico, resulting in high humidity and substantial rainfall throughout the year.The annual temperature range is considerable, with average monthly high temperatures spanning from 46.9°F (8.3°C) in January to a peak of 88.3°F (31.3°C) in July. The low temperatures also display a wide range, fluctuating from 32.7°F (0.4°C) in January to 68.9°F (20.5°C) in July. These variations point towards the seasonal changes that Huntsville experiences, with distinct cold, mild, and hot periods.
On the most part, Huntsville receives an ample amount of rainfall, averaging between 2.17in and 4.45in per month. The months of April and December receive the highest amount of rainfall, while September registers the least. It's worth noting that snowfall only occurs during the colder months, with miniature amounts ranging from 0.08in to 0.83in.
In terms of sunshine hours, Huntsville experiences a fair amount spanning from 4.5 hours per day in February to 10.4 hours per day in June. Throughout the year, the relative humidity stays relatively constant, fluctuating a small amount between 73% and 80%.
The best time to visit Huntsville
Optimum times to visit Huntsville would fall between April and June or between September and November. During these periods, the weather is pleasant, with average high temperatures ranging from 70°F (21.1°C) to 85.6°F (29.8°C). Furthermore, these months are the ones registering the longest daylight hours, keeping the days longer and more enjoyable for outdoor activities. The relative humidity during these periods, while still high, is slightly lower than in the peak summer months, making the weather more comfortable.The worst time to visit Huntsville
The most challenging time to visit Huntsville is likely between December and February. These months are the coldest, with low temperatures dropping to between 32.7°F (0.4°C) and 36.7°F (2.6°C). Furthermore, these months see the least daylight hours, between 9.9 hours to 11 hours per day, combined with the lowest amount of daily sunshine, only between 4.5 hours to 4.7 hours. December is also one of the rainiest months of the year, with an average rainfall of 4.25in.Spring weather in Huntsville
Spring in Huntsville sees gradually warming temperatures, with highs ranging from 60.1°F (15.6°C) in March to 77.9°F (25.5°C) in May. Low temperatures also increase during this season, starting at 43°F (6.1°C) in March and peaking at 58.6°F (14.8°C) in May. The region receives a substantial amount of rainfall during spring, with April witnessing the highest rainfall, measuring at 4.45in.Summer weather in Huntsville
Summer in Huntsville brings high temperatures and humidity. Average high temperatures peak at 88.3°F (31.3°C) in July while the average lows range from 66°F (18.9°C) to 68.9°F (20.5°C). Despite the heat, this season also presents the longest daylight hours, peaking at 14.5 hours in June, as well as the highest average daily sunshine, up to 10.4 hours in the same month.Autumn weather in Huntsville
Autumn is a transitional season in Huntsville, with temperatures gradually decreasing from the summer heat to winter coolness. Average highs fall from 82°F (27.8°C) in September to 58.5°F (14.7°C) by November. Lows also decrease, ranging from 62.6°F (17°C) to 41.5°F (5.3°C) over the same period. Note that September is the driest month in Huntsville with an average rainfall of 2.17in.Winter weather in Huntsville
Huntsville's winter months, December to February, are characterized by the lowest temperatures with the average highs ranging from 46.9°F (8.3°C) to 52.3°F (11.3°C), and the average lows between 32.7°F (0.4°C) to 36.7°F (2.6°C). December also experiences the highest rainfall during this season, 4.25in, while February witnesses minimal snowfall, just 0.35in on average. Although daily sunshine hours are limited, Huntsville still receives around 4.7 hours to 4.5 hours of sunshine during these months.Weather in January
The New Year in Huntsville, Alabama, commences with a cold snap. Nights can be particularly chilly in January, with the mercury dropping to a bitter 32.7°F (0.4°C). The winter charm is accentuated by brief snowfall, transforming the landscape into a beautiful white winter wonderland. Weather in January »Weather in February
The winter chill retains its grip in February, though the weather gradually starts becoming milder. Daytime temperatures experience a moderate boost to 52.3°F (11.3°C), however, citizens are still advised to stay prepared for possible frosty nights. Weather in February »Weather in March
The advent of spring summons a transitional phase in Huntsville's weather in March. The city begins to thaw, with temperatures comfortably nestling around 60.1°F (15.6°C) in the day. However, this period witnesses a noticeable increment in the rain frequency, encouraging the growth of spring blossoms, thus enhancing the city's scenic beauty. Weather in March »Weather in April
April showcases a significant turn in Huntsville's weather storyline with welcoming warmth and extended daylight hours. Daytime temperatures hover around a pleasant 70°F (21.1°C), stimulating the flourishing spring flora. Rainfall persists, though it does not impede outdoor activities due to the long, sunny days. Weather in April »Weather in May
May endorses the progression towards summer with noticeably warmer temperatures in Huntsville. Daytime temperatures in May climb up to a significant 77.9°F (25.5°C), charting the transition towards the hot season. This hike in temperature is accompanied by the longest daylight hours in the year, offering extensive time to indulge in outdoorsy pursuits. Weather in May »Weather in June
June ushers in the summer season in Huntsville, characterized by warm temperatures and substantial sunlight. The city bathes in sunlight for over 14 hours, contributing to the lively summer mood. Rainfall patterns persist, lending a refreshing dimension to the otherwise hot days. Weather in June »Weather in July
July represents the height of summer in Huntsville, boasting the highest temperatures of the year. The mercury level peaks at 88.3°F (31.3°C) in the day, making it the warmest month in Huntsville. Rainfall quotient remains fairly constant, bestowing brief periods of coolness amidst hot days. Weather in July »Weather in August
Even as the summer nears its end, August ensures Huntsville continues to experience warm weather. Daytime temperatures remain high, dissuading citizens from venturing out during peak hours. Nonetheless, the continuity of rain imparts relief from the unrelenting heat. Weather in August »Weather in September
September marks the onset of fall in Huntsville, paving the way for milder weather. Although maximum temperatures still touch 82°F (27.8°C), the departure from summer begins to become evident. The golden hues of autumn start to gather, making it a visually appealing time in the city. Weather in September »Weather in October
October authenticates the fall in Huntsville with further drop in temperatures. Moreover, the city sees a decline in the number of rainy days, making it an excellent month for outdoor exploration. Autumn hues reach their zenith, painting the city landscape with stunning warm colors. Weather in October »Weather in November
The transition towards winter in Huntsville gets underway in November. Daytime temperatures drop to 58.5°F (14.7°C), marking a significant change from the heat of previous months. The vibrant foliage starts to wither and fall, transforming the cityscape once again. Weather in November »Weather in December
Winter announces its arrival in Huntsville with December's onset. Temperatures drop further to a chilly 50.9°F (10.5°C) during the day, evoking the wintry ambiance across the city. The Christmas season enhances the beauty of Huntsville, with snowy landscapes and twinkling lights. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Huntsville, AL
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (46.9°F).
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).
Average pressure
Huntsville, AL
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.1"Hg - Average pressure in April:
30"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed
Huntsville, AL
- Average wind speed in January:
7.8mph - Average wind speed in February:
8.1mph - Average wind speed in March:
7.8mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6mph - Average wind speed in June:
5mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.5mph - Average wind speed in September:
5mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.9mph - Average wind speed in December:
7.5mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity
Huntsville, AL
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Huntsville, AL
- Average rainfall in January:
3.74" - Average rainfall in February:
4.33" - Average rainfall in March:
3.74" - Average rainfall in April:
4.45" - Average rainfall in May:
3.43" - Average rainfall in June:
3.23"
- Average rainfall in July:
3.9" - Average rainfall in August:
3.74" - Average rainfall in September:
2.17" - Average rainfall in October:
2.91" - Average rainfall in November:
2.48" - Average rainfall in December:
4.25"
The wettest month (with the highest rainfall) is April (4.45").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days
Huntsville, AL
- Average rainfall days in January:
11.9 days - Average rainfall days in February:
13.3 days - Average rainfall days in March:
15.3 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
16.6 days - Average rainfall days in June:
17.5 days
- Average rainfall days in July:
18.9 days - Average rainfall days in August:
17.6 days - Average rainfall days in September:
13.8 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
9.1 days - Average rainfall days in December:
13 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (9.1 days).
Average snowfall
Huntsville, AL
The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Huntsville, AL
- Average snowfall days in January:
1.9 days - Average snowfall days in February:
1.6 days - Average snowfall days in March:
1.1 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
1.3 days
The month with the highest number of snowfall days is January (1.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Huntsville, AL
- Average daylight in January:
10h and 6min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
4h and 42min - Average sunshine in February:
4h and 30min - Average sunshine in March:
5h and 54min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 30min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 42min - Average sunshine in October:
7h and 12min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days
Huntsville, AL
- Average sunshine days in January:
17 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
10.7 days - Average sunshine days in August:
11.5 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
15.6 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (10.3 days).
Average UV index
Huntsville, AL
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover
Huntsville, AL
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility
Huntsville, AL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





