Average annual temperature is 11.1 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -15.1 °C
Number of sunny days: 203 days
Number of rainy days: 137 days
Number of snow days: 25 days
Look at detailed online map of Folsom
* Weather data for Folsom 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) | 16.7 | 15.7 | 19.4 | 26.1 | 27.0 | 32.3 | 35.8 | 32.8 | 33.2 | 26.3 | 22.4 | 19.1 |
| Average daytime temperature (°C) | 6.0 | 8.2 | 11.9 | 17.9 | 21.8 | 25.3 | 30.5 | 29.0 | 26.3 | 19.6 | 13.3 | 8.2 |
| Average temperature (°C) | -0.2 | 1.0 | 4.4 | 9.2 | 14.7 | 18.3 | 23.3 | 22.2 | 19.3 | 12.2 | 6.4 | 2.1 |
| Average night temperature (°C) | -4.5 | -4.0 | -1.0 | 2.6 | 9.0 | 12.3 | 16.7 | 16.0 | 13.3 | 6.7 | 1.3 | -2.1 |
| Absolute minimum temperature (°C) | -15.1 | -15.1 | -9.4 | -7.3 | 5.5 | 7.5 | 11.7 | 11.2 | 7.0 | -7.3 | -7.8 | -9.0 |
| 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 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 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) | 7.9 | 8.9 | 9.8 | 11.0 | 11.1 | 12.6 | 12.9 | 11.8 | 10.8 | 9.9 | 8.6 | 7.7 |
| Precipitation (mm) | 16 | 27 | 19 | 34 | 65 | 62 | 25 | 34 | 44 | 18 | 5 | 24 |
| Sunny days | 23 | 20 | 18 | 20 | 5 | 9 | 8 | 15 | 19 | 23 | 22 | 21 |
| Rainy days | 3 | 7 | 6 | 6 | 26 | 21 | 23 | 16 | 11 | 8 | 4 | 6 |
| Snow days | 5 | 1 | 7 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 |
The best time to visit Folsom during the most sunny months:
The largest precipitation sum in Folsom is at