Climate averages 1991–2020
Huntsville weather
in August.
A hot, moderately wet month: one of the warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Huntsville: daytime highs average 31.0°C and nights cool to about 21.7°C. By daytime temperature it is one of the warmest months of the year.
Expect about 78 mm of rain on roughly 11 days, which makes August a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 27 min on an average August day.
The nearest other city in this atlas is Chattanooga (122 km away). In August its highs average 30.5°C, 0.5°C cooler than Huntsville, with 85 mm of rain.
Among the 498 cities listed in the United States, Huntsville ranks joint 168th of 498 for the warmest August highs and joint 254th of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Huntsville is 1.1°C warmer than that mean.
From August to September, average highs fall by 2.8°C to 28.1°C, and monthly rainfall rises from 78 mm to 92 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Huntsville climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.7°C1.1°C | 1.1°C | 129 | 10.3 | 10.110 h |
| February | 12.1°C2.6°C | 2.6°C | 124 | 11.1 | 10.911 h |
| March | 16.5°C6.2°C | 6.2°C | 145 | 11.8 | 11.912 h |
| April | 21.3°C10.7°C | 10.7°C | 126 | 10.4 | 13.013 h |
| May | 25.8°C15.7°C | 15.7°C | 106 | 11.0 | 14.014 h |
| June | 29.6°C20.1°C | 20.1°C | 105 | 12.4 | 14.414 h |
| July | 31.0°C22.0°C | 22.0°C | 112 | 12.8 | 14.214 h |
| August, selected | 31.0°C21.7°C | 21.7°C | 78 | 11.1 | 13.513 h |
| September | 28.1°C18.6°C | 18.6°C | 92 | 7.5 | 12.412 h |
| October | 22.3°C12.5°C | 12.5°C | 86 | 7.2 | 11.311 h |
| November | 15.7°C6.4°C | 6.4°C | 106 | 8.9 | 10.410 h |
| December | 11.1°C2.8°C | 2.8°C | 139 | 11.2 | 9.910 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Chattanooga in AugustUnited States · 122 kmHigh 30.5°C · Low 21.2°C · 85 mm rain
- Murfreesboro in AugustUnited States · 125 kmHigh 30.8°C · Low 21.3°C · 85 mm rain
- East Chattanooga in AugustUnited States · 127 kmHigh 30.3°C · Low 21.0°C · 85 mm rain
- Franklin in AugustUnited States · 135 kmHigh 30.8°C · Low 21.4°C · 85 mm rain
- Birmingham, United States in AugustUnited States · 136 kmHigh 31.5°C · Low 22.1°C · 95 mm rain
- Hoover in AugustUnited States · 149 kmHigh 31.4°C · Low 22.1°C · 95 mm rain
- Nashville in AugustUnited States · 161 kmHigh 30.9°C · Low 21.3°C · 84 mm rain
- Tuscaloosa in AugustUnited States · 192 kmHigh 32.3°C · Low 22.9°C · 91 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Huntsville) is explained once on the Huntsville year overview and on the Sources, method and limits page.