Climate averages 1991–2020
Evansville weather
in August.
A hot, moderately wet month: the 2nd warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Evansville: daytime highs average 30.3°C and nights cool to about 21.4°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 76 mm of rain on roughly 8 days, which makes August a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 38 min on an average August day.
The nearest other city in this atlas is Bloomington (Indiana), United States (160 km away). In August its highs average 28.8°C, 1.5°C cooler than Evansville, with 79 mm of rain.
Among the 498 cities listed in the United States, Evansville ranks joint 215th of 498 for the warmest August highs and joint 246th of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Evansville is 0.4°C warmer than that mean.
From August to September, average highs fall by 3.6°C to 26.7°C, and monthly rainfall rises from 76 mm to 82 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
Evansville climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.2°C-2.5°C | -2.5°C | 94 | 9.1 | 9.910 h |
| February | 7.8°C-1.0°C | -1.0°C | 85 | 9.0 | 10.811 h |
| March | 13.3°C3.6°C | 3.6°C | 111 | 11.5 | 11.912 h |
| April | 19.5°C9.4°C | 9.4°C | 130 | 12.0 | 13.213 h |
| May | 24.6°C15.1°C | 15.1°C | 123 | 13.0 | 14.214 h |
| June | 29.1°C19.8°C | 19.8°C | 98 | 11.3 | 14.815 h |
| July | 30.8°C22.0°C | 22.0°C | 86 | 10.4 | 14.515 h |
| August, selected | 30.3°C21.4°C | 21.4°C | 76 | 8.2 | 13.614 h |
| September | 26.7°C17.5°C | 17.5°C | 82 | 7.7 | 12.512 h |
| October | 20.2°C11.2°C | 11.2°C | 90 | 8.0 | 11.211 h |
| November | 12.7°C4.7°C | 4.7°C | 95 | 8.9 | 10.210 h |
| December | 7.1°C-0.2°C | -0.2°C | 102 | 10.2 | 9.610 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
- Bloomington (Indiana), United States in AugustUnited States · 160 kmHigh 28.8°C · Low 19.3°C · 79 mm rain
- Louisville in AugustUnited States · 160 kmHigh 30.0°C · Low 20.2°C · 71 mm rain
- Clarksville in AugustUnited States · 162 kmHigh 31.1°C · Low 21.5°C · 82 mm rain
- Nashville in AugustUnited States · 212 kmHigh 30.9°C · Low 21.3°C · 84 mm rain
- Indianapolis in AugustUnited States · 233 kmHigh 28.0°C · Low 18.9°C · 72 mm rain
- Franklin in AugustUnited States · 236 kmHigh 30.8°C · Low 21.4°C · 85 mm rain
- Decatur in AugustUnited States · 240 kmHigh 28.3°C · Low 19.3°C · 77 mm rain
- St. Louis in AugustUnited States · 242 kmHigh 30.4°C · Low 20.9°C · 74 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 Evansville) is explained once on the Evansville year overview and on the Sources, method and limits page.