Climate averages 1991–2020
Evansville weather
by month.
See how the year changes. July has the highest average daily maximum; August has the lowest average monthly rainfall.
Pleasant-weather months by our simple rule: SeptemberOctober
Long-term climate patterns, not a forecast for a particular trip.
Across the year Evansville averages a daytime high of 19.0°C and a nighttime low of 10.1°C, with about 1,173 mm of rain on roughly 119 days. July is the warmest month (average high 30.8°C) and January the coolest (5.2°C). April is the wettest month with 130 mm; August is the driest with 76 mm.
Months with pleasant weather by a simple rule (average high between 18°C and 29°C, average low of at least 5°C and at most 8 rain days): September and October. This looks at temperature and rain only, not humidity, wind, sea temperature or crowds.
The annual picture
A year in Evansville
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 | 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
Nearby cities
- Bloomington (Indiana), United StatesUnited States · 160 kmHigh 17.1°C · Low 8.1°C · 1,131 mm rain a year
- LouisvilleUnited States · 160 kmHigh 18.6°C · Low 9.2°C · 1,169 mm rain a year
- ClarksvilleUnited States · 162 kmHigh 20.3°C · Low 10.9°C · 1,229 mm rain a year
- NashvilleUnited States · 212 kmHigh 20.3°C · Low 10.7°C · 1,283 mm rain a year
- IndianapolisUnited States · 233 kmHigh 16.3°C · Low 7.4°C · 1,075 mm rain a year
- FranklinUnited States · 236 kmHigh 20.4°C · Low 11.1°C · 1,293 mm rain a year
- DecaturUnited States · 240 kmHigh 16.6°C · Low 7.5°C · 1,050 mm rain a year
- St. LouisUnited States · 242 kmHigh 18.6°C · Low 9.1°C · 1,066 mm rain a year
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 limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC-6, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 38.00°, -87.60° (5 km from the city centre), adjusted up by 0.1°C for the difference between the city's elevation (118 m) and the cell's (126 m). Rain comes from the 0.25° cell at 38.00°, -87.50°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.