Average annual temperature is 22.0 °C
Absolute maximum temperature: 41.9 °C
Absolute minimum temperature: 1.4 °C
Number of sunny days: 130 days
Number of rainy days: 235 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 | 27.2 | 28.4 | 30.1 | 31.8 | 37.9 | 38.1 | 41.9 | 39.4 | 34.6 | 29.1 | 25.3 |
| Average daytime temperature (°C) | 19.2 | 20.5 | 23.7 | 24.7 | 28.5 | 34.1 | 35.0 | 38.3 | 34.0 | 27.0 | 20.8 | 18.8 |
| Average temperature (°C) | 14.5 | 15.1 | 19.0 | 19.8 | 23.9 | 28.3 | 29.8 | 32.0 | 28.6 | 22.1 | 16.2 | 13.7 |
| Average night temperature (°C) | 10.9 | 11.2 | 15.3 | 15.9 | 20.1 | 24.0 | 25.6 | 27.0 | 24.4 | 18.5 | 12.8 | 9.8 |
| Absolute minimum temperature (°C) | 2.1 | 2.1 | 4.4 | 10.4 | 13.2 | 20.2 | 24.2 | 24.8 | 21.3 | 8.3 | 5.1 | 1.4 |
| 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 | 11.1 | 12.0 | 12.9 | 13.7 | 14.0 | 13.8 | 13.2 | 12.3 | 11.4 | 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) | 6.2 | 7.2 | 7.3 | 8.0 | 8.7 | 11.3 | 12.1 | 12.0 | 10.8 | 8.2 | 6.5 | 7.7 |
| Precipitation (mm) | 204 | 59 | 134 | 241 | 219 | 98 | 50 | 10 | 123 | 180 | 152 | 127 |
| Sunny days | 10 | 10 | 6 | 4 | 6 | 7 | 9 | 17 | 8 | 16 | 17 | 20 |
| Rainy days | 21 | 18 | 25 | 26 | 25 | 23 | 22 | 14 | 22 | 15 | 13 | 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