Climateby Month

Huntsville, AL climate by month

NOAA 1991-2020 normals · 639 ft elevation

Summers in Huntsville are hot and oppressively humid; winters are chilly. Highs peak at 92°F in July and fall to 52°F in January. Wet days are spread through the year, from about 7 to 11 a month. Normal snowfall is about 2.4 in a year. The most comfortable time to visit is April.

Warmest month
92°F
July normal high
Coldest month
33°F
January normal low
Wet days a year
118
54.3 in of precipitation
Snow a year
2.4 in
normal snowfall

How warm is Huntsville?

Normal highs range from 52°F in January to 92°F in July.

20°40°60°80°100° January: normal high 52°F (11°C), low 33°F (1°C) 52° 33° February: normal high 57°F (14°C), low 36°F (2°C) March: normal high 66°F (19°C), low 43°F (6°C) April: normal high 75°F (24°C), low 51°F (11°C) May: normal high 83°F (28°C), low 60°F (16°C) June: normal high 89°F (32°C), low 68°F (20°C) July: normal high 92°F (33°C), low 71°F (22°C) 92° 71° August: normal high 91°F (33°C), low 70°F (21°C) September: normal high 87°F (31°C), low 63°F (17°C) October: normal high 76°F (24°C), low 52°F (11°C) November: normal high 64°F (18°C), low 41°F (5°C) December: normal high 55°F (13°C), low 36°F (2°C) JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is Huntsville?

February has the most wet days (about 11); the year brings about 54 in of precipitation.

January: 11 wet days February: 11 wet days 11 March: 11 wet days April: 10 wet days May: 10 wet days June: 10 wet days July: 11 wet days August: 9 wet days September: 7 wet days 7 October: 8 wet days November: 9 wet days December: 11 wet days JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How much does it snow?

Normal snowfall is 2.4 in a year, most of it in February.

January: 0.7 in of snow February: 1.0 in of snow 1.0 March: 0.5 in of snow April: 0.0 in of snow 0.0 May: 0.0 in of snow June: 0.0 in of snow July: 0.0 in of snow August: 0.0 in of snow September: 0.0 in of snow October: 0.0 in of snow November: 0.0 in of snow December: 0.2 in of snow JFMAMJJASOND

How humid is Huntsville?

Muggy days peak in July, at about 28 days.

January: 0 muggy days 0 February: 0 muggy days March: 0 muggy days April: 0 muggy days May: 8 muggy days June: 20 muggy days July: 28 muggy days 28 August: 25 muggy days September: 12 muggy days October: 3 muggy days November: 0 muggy days December: 0 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at Huntsville Intl/C.t.jones Field Airport, 13 mi WSW of the city center.

How much daylight?

Daylight ranges from about 9.9 hours in December to 14.5 hours in June.

January: 10.1 hours of daylight February: 10.9 hours of daylight March: 12.0 hours of daylight April: 13.1 hours of daylight May: 14.0 hours of daylight June: 14.4 hours of daylight 14.4 July: 14.2 hours of daylight August: 13.4 hours of daylight September: 12.4 hours of daylight October: 11.3 hours of daylight November: 10.4 hours of daylight December: 9.9 hours of daylight 9.9 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for Huntsville, 1991-2020
MonthHighLowPrecip.Wet daysSnowMuggy daysDaylight
January 52°F33°F 5.0 in11 0.7 in 0 10.1 h
February 57°F36°F 5.1 in11 1.0 in 0 10.9 h
March 66°F43°F 5.4 in11 0.5 in 0 12.0 h
April 75°F51°F 4.9 in10 0.0 in 0 13.1 h
May 83°F60°F 4.7 in10 0.0 in 8 14.0 h
June 89°F68°F 4.1 in10 0.0 in 20 14.4 h
July 92°F71°F 4.5 in11 0.0 in 28 14.2 h
August 91°F70°F 3.5 in9 0.0 in 25 13.4 h
September 87°F63°F 3.5 in7 0.0 in 12 12.4 h
October 76°F52°F 3.6 in8 0.0 in 3 11.3 h
November 64°F41°F 4.3 in9 0.0 in 0 10.4 h
December 55°F36°F 5.9 in11 0.2 in 0 9.9 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit Huntsville

By our comfort score, the best month is April.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jan 43376
Feb 50783
Mar 641481
Apr 701670
May 60874
Jun 451713
Jul 410718
Aug 410617
Sep 50449
Oct 651551
Nov 591261
Dec 45573

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in Huntsville

The last spring frost typically comes around Mar 24, and the first fall frost around Nov 8, leaving 229 frost-free days in a typical year.

Frost and freeze dates for Huntsville
Typical date1 year in 10
Last spring frost (32°F)Mar 24after Apr 8
First fall frost (32°F)Nov 8before Oct 27
Last hard freeze (28°F)Mar 10after Mar 29
First hard freeze (28°F)Nov 20before Nov 3
Frost-free season229 daysunder 208 days

"Typical" is the date with a 50% chance of a later spring frost (or earlier fall frost). Planting after the "1 year in 10" spring date gives a 90% chance of no further frost. The Old Farmer's Almanac publishes 30% dates, which fall between our typical and 1-in-10 dates.

Station: Huntsville Intl Airport (USW00003856), NOAA 1991-2020 freeze probabilities. Frost dates for every city in Alabama.

Hottest and coldest readings, 1991-2020

The highest reading was 106°F (June 29, 2012); the lowest was 1°F (February 4, 1996).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near Huntsville

Similar climates elsewhere

Where the numbers come from

  • Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Huntsville Intl Airport (USW00003856), 13 mi WSW of the city center, 624 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Huntsville Intl/C.t.jones Field Airport (723230-03856), 13 mi WSW of the city center, 623 ft . Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).

Distances from the city center (USGS). Methodology · Report an error