Average annual temperature is 13.6 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: -7.9 °C
Number of sunny days: 178 days
Number of rainy days: 181 days
Number of snow days: 6 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 | 22.8 | 23.9 | 27.6 | 31.2 | 33.1 | 33.1 | 34.2 | 33.8 | 30.0 | 25.2 | 16.2 |
| Average daytime temperature (°C) | 8.6 | 13.0 | 13.1 | 19.1 | 23.5 | 27.6 | 30.3 | 29.2 | 27.2 | 20.3 | 13.4 | 9.8 |
| Average temperature (°C) | 4.3 | 6.2 | 6.6 | 12.3 | 17.1 | 21.1 | 24.3 | 23.3 | 20.6 | 14.6 | 7.6 | 5.0 |
| Average night temperature (°C) | 1.2 | 1.5 | 1.9 | 6.7 | 11.3 | 15.6 | 19.7 | 18.3 | 15.1 | 10.3 | 3.4 | 1.7 |
| Absolute minimum temperature (°C) | -5.9 | -7.9 | -6.5 | -0.2 | 2.9 | 10.4 | 15.2 | 12.4 | 9.9 | -1.0 | -7.0 | -6.3 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 4.4 | 7.7 | 7.6 | 9.4 | 10.1 | 11.0 | 11.6 | 11.5 | 10.5 | 7.5 | 7.6 | 5.3 |
| Precipitation (mm) | 126 | 51 | 133 | 105 | 50 | 65 | 89 | 90 | 67 | 76 | 42 | 64 |
| Sunny days | 5 | 17 | 15 | 15 | 17 | 16 | 10 | 15 | 15 | 17 | 22 | 14 |
| Rainy days | 24 | 11 | 13 | 15 | 14 | 14 | 21 | 16 | 15 | 14 | 8 | 16 |
| Snow days | 2 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Folsom during the most sunny months:
The largest precipitation sum in Folsom is at