Average annual temperature is 15.6 °C
Absolute maximum temperature: 35.6 °C
Absolute minimum temperature: -7.5 °C
Number of sunny days: 189 days
Number of rainy days: 175 days
Number of snow days: 1 day
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) | 19.1 | 25.7 | 25.0 | 30.5 | 29.2 | 30.7 | 35.6 | 34.2 | 35.4 | 28.5 | 26.1 | 20.0 |
| Average daytime temperature (°C) | 12.0 | 13.8 | 14.8 | 22.9 | 22.8 | 27.6 | 31.2 | 29.9 | 26.7 | 21.8 | 14.6 | 12.5 |
| Average temperature (°C) | 7.6 | 8.6 | 9.3 | 16.3 | 17.6 | 22.0 | 25.8 | 24.8 | 21.9 | 16.3 | 9.4 | 7.4 |
| Average night temperature (°C) | 4.3 | 4.4 | 5.0 | 11.7 | 13.5 | 17.8 | 22.0 | 21.0 | 18.2 | 12.0 | 5.5 | 3.8 |
| Absolute minimum temperature (°C) | -1.6 | -7.5 | -1.3 | 3.8 | 7.5 | 13.9 | 18.9 | 18.1 | 14.3 | 6.0 | -4.3 | -1.8 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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) | 5.6 | 7.1 | 8.1 | 9.5 | 10.5 | 10.8 | 11.7 | 10.4 | 8.7 | 8.8 | 7.7 | 6.1 |
| Precipitation (mm) | 68 | 59 | 47 | 118 | 64 | 155 | 111 | 52 | 118 | 31 | 52 | 166 |
| Sunny days | 14 | 16 | 17 | 15 | 17 | 12 | 7 | 8 | 18 | 23 | 24 | 18 |
| Rainy days | 17 | 11 | 14 | 15 | 14 | 18 | 24 | 23 | 12 | 8 | 6 | 13 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Farnham during the most sunny months:
The largest precipitation sum in Farnham is at