Average annual temperature is 13.2 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: -8.8 °C
Number of sunny days: 198 days
Number of rainy days: 165 days
Number of snow days: 2 days
Look at detailed online map of Glen Forest
* Weather data for Glen Forest 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) | 18.4 | 22.0 | 26.6 | 28.2 | 28.1 | 30.8 | 34.9 | 34.1 | 33.6 | 27.5 | 24.0 | 17.9 |
| Average daytime temperature (°C) | 9.9 | 13.5 | 14.0 | 20.5 | 21.8 | 25.2 | 30.4 | 29.2 | 25.1 | 20.4 | 13.7 | 10.4 |
| Average temperature (°C) | 4.7 | 7.2 | 7.3 | 13.2 | 15.8 | 19.1 | 23.8 | 22.7 | 18.9 | 13.7 | 7.0 | 4.6 |
| Average night temperature (°C) | 1.2 | 2.4 | 2.0 | 6.9 | 10.8 | 13.7 | 18.3 | 17.7 | 14.1 | 8.8 | 2.2 | 0.7 |
| Absolute minimum temperature (°C) | -6.7 | -8.8 | -7.7 | -0.5 | 4.6 | 8.5 | 14.4 | 12.5 | 10.4 | 1.9 | -7.1 | -5.6 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 5.8 | 6.8 | 8.1 | 9.8 | 10.3 | 10.7 | 12.3 | 10.6 | 9.6 | 8.9 | 8.1 | 6.2 |
| Precipitation (mm) | 79 | 85 | 77 | 102 | 92 | 147 | 86 | 97 | 84 | 25 | 45 | 112 |
| Sunny days | 15 | 14 | 17 | 17 | 13 | 14 | 12 | 15 | 16 | 23 | 26 | 16 |
| Rainy days | 16 | 13 | 14 | 13 | 18 | 16 | 19 | 16 | 14 | 8 | 4 | 14 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Glen Forest during the most sunny months:
The largest precipitation sum in Glen Forest is at