Average annual temperature is 11.2 °C
Absolute maximum temperature: 32.1 °C
Absolute minimum temperature: -16.4 °C
Number of sunny days: 150 days
Number of rainy days: 203 days
Number of snow days: 12 days
Look at detailed online map of Rock Glen
* Weather data for Rock Glen 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) | 16.4 | 16.0 | 16.6 | 29.3 | 29.8 | 32.1 | 31.8 | 29.1 | 31.5 | 27.1 | 18.1 | 13.6 |
| Average daytime temperature (°C) | 5.9 | 7.4 | 8.2 | 17.3 | 20.7 | 23.9 | 28.0 | 25.7 | 22.6 | 17.2 | 9.1 | 6.8 |
| Average temperature (°C) | 2.6 | 2.1 | 3.0 | 11.3 | 14.1 | 18.5 | 22.8 | 20.8 | 17.9 | 12.9 | 4.5 | 3.4 |
| Average night temperature (°C) | 0.0 | -2.4 | -1.1 | 6.4 | 8.0 | 13.8 | 18.5 | 16.7 | 14.1 | 9.5 | 1.1 | 0.8 |
| Absolute minimum temperature (°C) | -7.4 | -16.4 | -7.5 | -1.7 | 1.0 | 7.7 | 14.1 | 12.5 | 9.4 | 1.2 | -6.4 | -5.0 |
| 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) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 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 | 7.0 | 7.1 | 9.0 | 11.9 | 11.4 | 11.9 | 10.7 | 8.5 | 7.7 | 7.2 | 3.7 |
| Precipitation (mm) | 102 | 37 | 85 | 120 | 34 | 168 | 96 | 89 | 126 | 85 | 59 | 131 |
| Sunny days | 9 | 13 | 9 | 14 | 21 | 9 | 7 | 7 | 15 | 15 | 18 | 13 |
| Rainy days | 17 | 13 | 21 | 16 | 10 | 21 | 24 | 24 | 15 | 16 | 11 | 15 |
| Snow days | 5 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The best time to visit Rock Glen during the most sunny months:
The largest precipitation sum in Rock Glen is at