Average annual temperature is 12.7 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -15.1 °C
Number of sunny days: 192 days
Number of rainy days: 160 days
Number of snow days: 13 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) | 18.1 | 13.8 | 21.8 | 26.7 | 31.7 | 33.3 | 35.3 | 35.9 | 31.3 | 29.1 | 23.9 | 16.0 |
| Average daytime temperature (°C) | 5.3 | 8.1 | 10.3 | 18.5 | 25.2 | 29.6 | 29.4 | 27.8 | 25.5 | 18.6 | 11.6 | 8.1 |
| Average temperature (°C) | 0.6 | 2.1 | 4.4 | 11.4 | 18.7 | 23.2 | 24.0 | 22.9 | 20.2 | 13.7 | 6.1 | 4.0 |
| Average night temperature (°C) | -2.4 | -2.1 | 0.1 | 5.5 | 12.6 | 16.9 | 19.0 | 18.5 | 15.5 | 9.6 | 1.6 | 1.2 |
| Absolute minimum temperature (°C) | -15.1 | -14.9 | -11.1 | -2.2 | 3.2 | 10.3 | 14.8 | 11.3 | 10.0 | -2.3 | -10.0 | -7.9 |
| 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) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.3 |
| 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) | 4.1 | 7.4 | 6.6 | 9.5 | 10.8 | 12.7 | 12.6 | 10.6 | 10.0 | 7.3 | 7.6 | 4.6 |
| Precipitation (mm) | 52 | 104 | 119 | 79 | 33 | 43 | 104 | 159 | 56 | 80 | 18 | 74 |
| Sunny days | 12 | 17 | 12 | 15 | 18 | 23 | 13 | 10 | 18 | 16 | 23 | 15 |
| Rainy days | 10 | 9 | 18 | 15 | 13 | 7 | 18 | 21 | 12 | 15 | 7 | 15 |
| Snow days | 9 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Delavan during the most sunny months:
The largest precipitation sum in Delavan is at