Average annual temperature is 11.8 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -15.2 °C
Number of sunny days: 172
Number of rainy days: 178
Number of snow days: 15
Average annual precipitation: 1056 mm
Look at detailed online map of Illinoi
* Weather data for Illinoi United States is based on climate observations for 2023 year
| Jan | Feb | Mar | Apr | Maggio | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 17.5 | 14.5 | 19.8 | 26.5 | 33.2 | 34.8 | 34.3 | 35.2 | 32 | 29.2 | 22 | 15 |
| Average daytime temperature (°C) | 4.5 | 7.4 | 8.7 | 17.7 | 24.3 | 28.9 | 28.7 | 27.1 | 24.7 | 17.9 | 11 | 7.6 |
| Average temperature (°C) | 0.6 | 1.7 | 3.3 | 10.6 | 17.3 | 21.7 | 22.9 | 21.8 | 19.3 | 13 | 5.4 | 3.8 |
| Average night temperature (°C) | -2.2 | -2.3 | -0.8 | 4.7 | 11.2 | 15.6 | 17.5 | 17.3 | 14.9 | 9.3 | 1 | 1.1 |
| Absolute minimum temperature (°C) | -13.7 | -15.2 | -10.9 | -3.4 | 2 | 9 | 12.8 | 11.1 | 7.8 | -3.3 | -10.1 | -7.8 |
| Jan | Feb | Mar | Apr | Maggio | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.1 | 11.2 | 12.6 | 13.9 | 14.9 | 15.2 | 15.1 | 14.4 | 13.1 | 11.8 | 10.4 | 9.4 |
| Daylight mean duration (h) | 9.6 | 10.6 | 12 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.3 | 10.1 | 11.3 | 12.7 | 14 | 14.9 | 14.4 | 13.2 | 11.8 | 10.5 | 9.5 | 9.2 |
| Sunshine mean duration (h) | 4.3 | 8.4 | 7 | 9.4 | 10.9 | 12.2 | 11.9 | 10.8 | 8.3 | 7.3 | 7.1 | 5.7 |
| Precipitation (mm) | 59 | 93 | 129 | 72 | 73 | 33 | 148 | 100 | 73 | 169 | 27 | 82 |
| Sunny days | 8 | 17 | 12 | 14 | 20 | 16 | 12 | 14 | 14 | 10 | 22 | 13 |
| Rainy days | 15 | 9 | 18 | 16 | 11 | 14 | 19 | 17 | 16 | 20 | 7 | 16 |
| Snow days | 8 | 2 | 1 | 1 | 1 | 2 |
The best time to visit Illinoi during the most sunny months:
The largest precipitation sum in Illinoi is at