Average annual temperature is 22.1 °C
Absolute maximum temperature: 41.2 °C
Absolute minimum temperature: 1.3 °C
Number of sunny days: 137 days
Number of rainy days: 228 days
Look at detailed online map of Forest Green
* Weather data for Forest Green 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) | 25.8 | 28.0 | 28.1 | 29.6 | 31.3 | 37.5 | 37.8 | 41.2 | 38.5 | 33.0 | 28.5 | 26.3 |
| Average daytime temperature (°C) | 19.8 | 20.8 | 23.8 | 24.8 | 28.4 | 33.7 | 34.8 | 37.3 | 34.0 | 26.9 | 20.9 | 18.9 |
| Average temperature (°C) | 15.3 | 15.5 | 19.4 | 20.1 | 23.8 | 28.3 | 29.5 | 31.3 | 28.5 | 22.4 | 16.6 | 14.3 |
| Average night temperature (°C) | 11.5 | 11.6 | 15.9 | 16.5 | 20.0 | 24.0 | 25.3 | 26.6 | 24.4 | 18.7 | 13.2 | 10.6 |
| Absolute minimum temperature (°C) | 1.3 | 2.5 | 5.3 | 10.2 | 14.7 | 19.5 | 23.5 | 23.8 | 20.9 | 7.8 | 5.6 | 2.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.5 | 11.2 | 12.0 | 12.9 | 13.6 | 14.0 | 13.8 | 13.2 | 12.3 | 11.5 | 10.7 | 10.3 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.4 | 7.6 | 7.9 | 8.1 | 8.8 | 11.8 | 12.2 | 12.0 | 10.8 | 8.4 | 6.8 | 7.8 |
| Precipitation (mm) | 214 | 57 | 112 | 254 | 200 | 70 | 85 | 8 | 74 | 152 | 130 | 101 |
| Sunny days | 12 | 11 | 7 | 6 | 5 | 14 | 6 | 15 | 7 | 15 | 19 | 20 |
| Rainy days | 19 | 17 | 24 | 24 | 26 | 16 | 25 | 16 | 23 | 16 | 11 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Forest Green during the most sunny months:
The largest precipitation sum in Forest Green is at