Huntsville, AL weather in August
Expect hot, oppressively humid weather with some rain in Huntsville in August, with highs near 91°F and lows near 70°F. Rain falls on about 9 days. It is one of the warmest months in Huntsville.
- Normal high
- 91°F
- Normal low
- 70°F
- Wet days
- 9
- 3.5 in total
- Muggy days
- 25
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 92°F | 90°F |
| Normal low | 71°F | 68°F |
| Chance of a wet day | 32% | 27% |
| Sunrise / sunset | 5:56 am / 7:48 pm | 6:18 am / 7:14 pm |
| Daylight | 13.9 h | 12.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical August day
- 6 am71°Fdew point 68°F
- 9 am81°Fdew point 70°F
- Noon86°Fdew point 68°F
- 3 pm87°Fdew point 67°F
- 6 pm83°Fdew point 69°F
- 9 pm76°Fdew point 69°F
NOAA hourly normals (local standard time) from Huntsville Intl Airport (13 mi away); average wind 5 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Hot dayshigh 90°F or more17 of 31
- Muggy daysdaily mean dew point 65°F or more25 of 31
- Wet daysat least 0.01 in of rain or melted snow9 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 3.5 in; a dry August brings about 2.8 in and a wet one about 4.5 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How August varies from year to year
- Warmest August, 1991-20202007: average high 98°F
- Coolest August1992: average high 85°F
- Wettest August2015: 8.1 in
- Driest August1998: 0.6 in
- Highest reading105°F (August 16, 2007)
- Lowest reading51°F (August 13, 2004)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 92°F | 91°F | 87°F |
| Normal low | 71°F | 70°F | 63°F |
| Wet days | 11 | 9 | 7 |
| Comfortable days | 0 | 0 | 4 |
| Daylight | 14.2 h | 13.4 h | 12.4 h |
Highs change by -1°F from July and -4°F into September.
Nearby alternatives in August
- Cooler: Gatlinburg, TN186 mi · high 82°F · 14 wet days
How Huntsville ranks in August
- Normal high103rd warmest of 378 cities; 3rd of 6 in Alabama
- Wet days197th driest of 378
- Comfortable days226th most of 341
What to pack for Huntsville in August
- Light, breathable clothing – highs near 91°F and about 25 muggy days
- A rain jacket or umbrella – rain on about 9 days
Heating and cooling
August has 0 heating degree days and 481 cooling degree days (base 65°F), 10% of the year's total heating and cooling demand.
Questions
How hot is Huntsville in August?
The normal high is 91°F and the normal low is 70°F. From 1991 to 2020 the hottest August reading was 105°F (most recently on August 16, 2007).
Does it rain a lot in Huntsville in August?
About 9 days in August have at least 0.01 in of precipitation, and the normal total is 3.6 in. The wettest August in 1991-2020 was in 2015 (8.1 in); the driest was in 1998 (0.6 in).
Is August a good time to visit Huntsville?
August ranks 12th of 12 months on our comfort score for Huntsville (41 out of 100). It has almost no comfortable days and about 17 days at 90°F or hotter. The best month is April.
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).