Average annual temperature is 11.0 °C
Absolute maximum temperature: 37.4 °C
Absolute minimum temperature: -21.9 °C
Number of sunny days: 175 days
Number of rainy days: 173 days
Number of snow days: 17 days
Look at detailed online map of Roselle
* Weather data for Roselle 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) | 10.5 | 14.8 | 20.3 | 25.6 | 30.9 | 32.3 | 32.4 | 37.4 | 34.2 | 27.7 | 19.7 | 14.7 |
| Average daytime temperature (°C) | 3.0 | 5.3 | 7.6 | 16.0 | 21.5 | 26.8 | 28.2 | 27.3 | 24.2 | 16.7 | 9.6 | 6.3 |
| Average temperature (°C) | -0.7 | 0.0 | 2.5 | 9.6 | 15.1 | 20.3 | 22.7 | 22.2 | 19.2 | 12.6 | 4.9 | 3.1 |
| Average night temperature (°C) | -3.5 | -3.9 | -1.0 | 4.1 | 9.6 | 14.8 | 18.1 | 18.0 | 15.4 | 9.2 | 1.3 | 0.8 |
| Absolute minimum temperature (°C) | -21.9 | -19.3 | -11.6 | -2.1 | 1.4 | 7.5 | 14.3 | 12.6 | 9.3 | -2.8 | -10.6 | -7.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 13.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.4 | 7.7 | 6.5 | 9.1 | 10.8 | 11.9 | 11.6 | 10.4 | 7.8 | 6.4 | 7.0 | 3.8 |
| Precipitation (mm) | 55 | 96 | 79 | 75 | 64 | 41 | 249 | 106 | 101 | 103 | 39 | 71 |
| Sunny days | 12 | 17 | 11 | 14 | 20 | 19 | 9 | 16 | 12 | 10 | 22 | 13 |
| Rainy days | 13 | 8 | 16 | 16 | 11 | 11 | 22 | 15 | 18 | 20 | 7 | 16 |
| Snow days | 6 | 3 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 |
The best time to visit Roselle during the most sunny months:
The largest precipitation sum in Roselle is at