Average annual temperature is 22.3 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: -0.7 °C
Number of sunny days: 143 days
Number of rainy days: 222 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) | 27.9 | 31.8 | 32.9 | 34.3 | 34.5 | 35.9 | 36.2 | 37.7 | 34.4 | 30.9 | 31.4 | 28.1 |
| Average daytime temperature (°C) | 22.5 | 26.6 | 27.8 | 29.9 | 30.1 | 32.1 | 33.5 | 34.7 | 31.8 | 27.9 | 24.2 | 21.0 |
| Average temperature (°C) | 15.7 | 19.2 | 20.6 | 23.1 | 23.7 | 25.9 | 27.5 | 28.6 | 25.9 | 22.5 | 18.9 | 16.1 |
| Average night temperature (°C) | 10.6 | 13.7 | 15.0 | 17.8 | 18.5 | 21.4 | 23.6 | 23.9 | 21.7 | 18.3 | 14.8 | 12.7 |
| Absolute minimum temperature (°C) | -0.7 | 5.4 | 5.2 | 10.7 | 14.1 | 18.0 | 22.1 | 22.2 | 16.9 | 9.9 | 4.7 | 4.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.6 | 11.2 | 12.0 | 12.9 | 13.6 | 13.9 | 13.8 | 13.1 | 12.3 | 11.5 | 10.7 | 10.4 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.5 | 9.2 | 10.0 | 9.6 | 11.7 | 11.0 | 10.9 | 11.0 | 10.2 | 9.0 | 6.7 | 6.9 |
| Precipitation (mm) | 81 | 22 | 27 | 81 | 103 | 128 | 195 | 75 | 171 | 41 | 79 | 98 |
| Sunny days | 20 | 18 | 15 | 11 | 12 | 4 | 1 | 4 | 6 | 19 | 18 | 15 |
| Rainy days | 11 | 10 | 16 | 19 | 19 | 26 | 30 | 27 | 24 | 12 | 12 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sumter County is at