Average annual temperature is 14.3 °C
Absolute maximum temperature: 40.8 °C
Absolute minimum temperature: -13.3 °C
Number of sunny days: 218 days
Number of rainy days: 139 days
Number of snow days: 8 days
Look at detailed online map of Delavan
* Weather data for Delavan 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) | 13.0 | 17.3 | 21.6 | 30.5 | 33.2 | 37.2 | 39.1 | 40.8 | 34.7 | 31.7 | 21.3 | 16.6 |
| Average daytime temperature (°C) | 6.5 | 9.5 | 12.1 | 21.8 | 26.4 | 30.6 | 33.2 | 33.4 | 29.5 | 20.7 | 13.1 | 8.7 |
| Average temperature (°C) | 1.0 | 2.5 | 5.8 | 13.9 | 19.8 | 24.2 | 26.7 | 27.0 | 23.2 | 15.0 | 7.6 | 4.0 |
| Average night temperature (°C) | -2.6 | -2.8 | 1.1 | 7.8 | 14.1 | 18.6 | 21.5 | 21.6 | 17.9 | 10.3 | 3.2 | 0.8 |
| Absolute minimum temperature (°C) | -12.8 | -13.3 | -8.7 | -2.2 | 4.8 | 12.0 | 16.8 | 15.1 | 13.0 | -5.1 | -8.3 | -5.1 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 6.6 | 8.6 | 8.4 | 10.4 | 10.2 | 12.1 | 11.9 | 12.0 | 10.1 | 8.0 | 7.2 | 5.4 |
| Precipitation (mm) | 41 | 51 | 33 | 41 | 55 | 36 | 56 | 45 | 55 | 51 | 41 | 62 |
| Sunny days | 20 | 21 | 16 | 22 | 17 | 9 | 12 | 23 | 21 | 18 | 21 | 18 |
| Rainy days | 9 | 6 | 14 | 8 | 14 | 21 | 19 | 8 | 9 | 13 | 7 | 11 |
| Snow days | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Delavan during the most sunny months:
The largest precipitation sum in Delavan is at