Average annual temperature is 10.8 °C
Absolute maximum temperature: 32.1 °C
Absolute minimum temperature: -10.9 °C
Number of sunny days: 134 days
Number of rainy days: 207 days
Number of snow days: 24 days
Look at detailed online map of Farnham
* Weather data for Farnham 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) | 14.4 | 18.2 | 15.8 | 26.8 | 25.4 | 28.7 | 32.1 | 27.9 | 31.1 | 27.5 | 16.9 | 15.4 |
| Average daytime temperature (°C) | 4.6 | 7.4 | 5.8 | 13.6 | 17.4 | 21.6 | 25.5 | 23.7 | 21.6 | 16.1 | 9.2 | 7.5 |
| Average temperature (°C) | 1.5 | 1.4 | 2.1 | 9.1 | 12.8 | 18.0 | 21.8 | 20.5 | 18.3 | 13.1 | 5.9 | 4.7 |
| Average night temperature (°C) | -0.9 | -2.3 | -0.8 | 4.9 | 8.8 | 14.8 | 18.9 | 17.8 | 15.3 | 10.6 | 3.2 | 2.6 |
| Absolute minimum temperature (°C) | -9.2 | -10.9 | -5.2 | -1.9 | 2.2 | 10.5 | 14.7 | 13.1 | 10.2 | 3.8 | -6.8 | -3.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 2.7 | 6.3 | 6.4 | 8.6 | 11.4 | 11.3 | 11.7 | 10.7 | 9.6 | 5.9 | 5.5 | 3.6 |
| Precipitation (mm) | 152 | 66 | 115 | 86 | 56 | 139 | 99 | 129 | 29 | 92 | 70 | 95 |
| Sunny days | 4 | 9 | 8 | 14 | 21 | 13 | 7 | 10 | 13 | 13 | 13 | 9 |
| Rainy days | 19 | 15 | 16 | 16 | 10 | 17 | 24 | 21 | 17 | 18 | 15 | 19 |
| Snow days | 8 | 4 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 |
The best time to visit Farnham during the most sunny months:
The largest precipitation sum in Farnham is at