Average annual temperature is 3.2 °C
Absolute maximum temperature: 28.5 °C
Absolute minimum temperature: -24.3 °C
Number of sunny days: 140 days
Number of rainy days: 120 days
Number of snow days: 105 days
Look at detailed online map of Ilium
* Weather data for Ilium 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) | 6.6 | 4.6 | 5.1 | 13.0 | 15.6 | 20.3 | 28.5 | 23.9 | 22.3 | 18.8 | 12.9 | 8.7 |
| Average daytime temperature (°C) | -2.3 | -0.5 | 0.0 | 6.2 | 12.3 | 15.5 | 24.1 | 21.9 | 17.9 | 12.3 | 5.8 | 2.0 |
| Average temperature (°C) | -6.7 | -6.6 | -4.7 | -0.2 | 6.4 | 8.8 | 16.5 | 15.0 | 10.7 | 5.6 | -1.7 | -5.3 |
| Average night temperature (°C) | -10.0 | -11.1 | -8.9 | -5.4 | 1.4 | 2.7 | 8.2 | 8.3 | 4.1 | 0.1 | -7.0 | -11.1 |
| Absolute minimum temperature (°C) | -19.8 | -20.3 | -18.0 | -16.3 | -2.9 | -0.4 | 3.8 | 5.3 | 0.7 | -15.0 | -19.5 | -24.3 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| 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) | 5.7 | 7.8 | 7.9 | 11.3 | 12.0 | 12.9 | 13.2 | 11.6 | 11.0 | 9.6 | 7.8 | 7.3 |
| Precipitation (mm) | 123 | 75 | 132 | 50 | 63 | 42 | 38 | 64 | 49 | 25 | 31 | 35 |
| Sunny days | 6 | 13 | 8 | 12 | 4 | 12 | 10 | 9 | 11 | 19 | 19 | 17 |
| Rainy days | 3 | 2 | 1 | 3 | 20 | 18 | 21 | 22 | 18 | 8 | 3 | 1 |
| Snow days | 22 | 13 | 22 | 15 | 7 | 0 | 0 | 0 | 1 | 4 | 8 | 13 |
The best time to visit Ilium during the most sunny months:
The largest precipitation sum in Ilium is at