Average annual temperature is 13.2 °C
Absolute maximum temperature: 36.6 °C
Absolute minimum temperature: -13.1 °C
Number of sunny days: 208 days
Number of rainy days: 146 days
Number of snow days: 11 days
Look at detailed online map of De Kalb
* Weather data for De Kalb 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) | 12.6 | 17.3 | 22.0 | 28.7 | 31.9 | 36.3 | 36.1 | 36.6 | 34.3 | 31.8 | 22.1 | 15.1 |
| Average daytime temperature (°C) | 4.9 | 8.7 | 10.5 | 19.5 | 25.9 | 30.1 | 30.4 | 29.7 | 27.9 | 19.9 | 12.2 | 8.2 |
| Average temperature (°C) | 0.0 | 1.7 | 4.7 | 12.3 | 19.1 | 23.7 | 24.9 | 24.5 | 21.8 | 14.5 | 6.8 | 3.8 |
| Average night temperature (°C) | -3.4 | -3.3 | 0.5 | 6.7 | 13.3 | 18.1 | 20.3 | 20.3 | 16.6 | 10.1 | 2.6 | 0.6 |
| Absolute minimum temperature (°C) | -13.0 | -13.1 | -9.9 | -2.6 | 3.8 | 12.0 | 15.4 | 14.9 | 12.1 | -3.7 | -7.1 | -5.0 |
| 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 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 14.9 | 14.7 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.8 | 7.8 | 7.2 | 10.3 | 10.8 | 12.2 | 11.1 | 11.0 | 10.5 | 7.9 | 6.7 | 5.1 |
| Precipitation (mm) | 46 | 73 | 57 | 104 | 75 | 119 | 99 | 157 | 67 | 72 | 36 | 94 |
| Sunny days | 19 | 20 | 13 | 19 | 16 | 13 | 13 | 16 | 23 | 17 | 24 | 15 |
| Rainy days | 6 | 8 | 16 | 11 | 15 | 17 | 18 | 15 | 7 | 14 | 4 | 15 |
| Snow days | 6 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The best time to visit De Kalb during the most sunny months:
The largest precipitation sum in De Kalb is at