Average annual temperature is 19.7 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: -2.8 °C
Number of sunny days: 190 days
Number of rainy days: 175 days
Look at detailed online map of Sumter County
* Weather data for Sumter County United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 25.3 | 28.0 | 28.9 | 30.5 | 35.3 | 37.7 | 38.1 | 39.0 | 34.9 | 31.3 | 27.7 | 24.4 |
| Average daytime temperature (°C) | 17.1 | 20.1 | 21.7 | 24.5 | 30.1 | 33.2 | 34.4 | 35.9 | 31.8 | 26.0 | 19.5 | 16.2 |
| Average temperature (°C) | 11.8 | 14.0 | 15.5 | 18.2 | 23.0 | 26.5 | 27.9 | 29.4 | 25.6 | 19.9 | 13.6 | 10.4 |
| Average night temperature (°C) | 7.9 | 9.7 | 10.5 | 12.9 | 17.2 | 20.9 | 23.2 | 24.1 | 20.4 | 14.8 | 9.1 | 6.0 |
| Absolute minimum temperature (°C) | -2.0 | -1.6 | -2.8 | 7.0 | 9.5 | 18.5 | 20.2 | 19.9 | 15.9 | 7.6 | 0.3 | 0.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.4 | 7.6 | 8.9 | 9.4 | 10.8 | 11.6 | 10.9 | 11.4 | 10.8 | 9.0 | 6.9 | 7.8 |
| Precipitation (mm) | 176 | 155 | 106 | 131 | 71 | 84 | 99 | 84 | 46 | 32 | 50 | 63 |
| Sunny days | 14 | 9 | 19 | 13 | 12 | 11 | 11 | 15 | 21 | 25 | 19 | 21 |
| Rainy days | 17 | 19 | 12 | 17 | 19 | 19 | 20 | 16 | 9 | 6 | 11 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sumter County is at