Average annual temperature is 11.7 °C
Absolute maximum temperature: 37.4 °C
Absolute minimum temperature: -24.2 °C
Number of sunny days: 193 days
Number of rainy days: 153 days
Number of snow days: 19 days
Look at detailed online map of Whiteside County
* Weather data for Whiteside 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) | 11.0 | 12.5 | 22.0 | 25.7 | 32.1 | 36.0 | 34.9 | 37.4 | 34.3 | 28.8 | 19.1 | 14.8 |
| Average daytime temperature (°C) | 2.5 | 5.2 | 8.5 | 17.3 | 24.4 | 29.3 | 29.1 | 29.0 | 25.7 | 17.6 | 10.1 | 6.9 |
| Average temperature (°C) | -1.6 | -0.5 | 3.0 | 10.3 | 17.7 | 22.8 | 23.5 | 23.3 | 20.1 | 12.8 | 4.9 | 2.9 |
| Average night temperature (°C) | -4.6 | -5.0 | -1.0 | 4.6 | 11.5 | 16.3 | 18.1 | 18.4 | 15.7 | 8.9 | 0.8 | 0.3 |
| Absolute minimum temperature (°C) | -24.2 | -20.9 | -12.0 | -2.2 | 2.0 | 8.4 | 14.1 | 11.6 | 9.4 | -2.0 | -11.6 | -8.0 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.3 | 14.5 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.7 | 7.2 | 6.7 | 9.2 | 11.1 | 12.6 | 12.3 | 11.1 | 9.2 | 7.4 | 7.1 | 4.2 |
| Precipitation (mm) | 77 | 82 | 97 | 76 | 39 | 17 | 108 | 37 | 86 | 115 | 25 | 65 |
| Sunny days | 13 | 16 | 16 | 14 | 23 | 18 | 14 | 15 | 11 | 15 | 21 | 17 |
| Rainy days | 7 | 9 | 14 | 16 | 8 | 12 | 17 | 16 | 19 | 15 | 7 | 13 |
| Snow days | 11 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 |
The best time to visit Whiteside County during the most sunny months:
The largest precipitation sum in Whiteside County is at