Average annual temperature is 8.4 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: -31.2 °C
Number of sunny days: 107 days
Number of rainy days: 207 days
Number of snow days: 51 days
Look at detailed online map of Town of Fairfax
* Weather data for Town of Fairfax 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) | 9.2 | 11.5 | 11.1 | 26.6 | 31.1 | 34.1 | 31.4 | 26.2 | 29.5 | 28.5 | 14.9 | 12.4 |
| Average daytime temperature (°C) | 0.7 | 1.0 | 3.8 | 14.6 | 19.2 | 23.2 | 26.2 | 22.6 | 21.8 | 15.6 | 5.3 | 3.5 |
| Average temperature (°C) | -2.8 | -5.0 | -0.7 | 8.2 | 13.1 | 17.9 | 21.4 | 18.3 | 16.8 | 11.7 | 1.4 | -0.1 |
| Average night temperature (°C) | -6.3 | -10.4 | -4.8 | 2.9 | 6.9 | 13.1 | 17.7 | 14.7 | 12.6 | 8.5 | -1.7 | -3.5 |
| Absolute minimum temperature (°C) | -18.0 | -31.2 | -11.1 | -6.3 | 0.5 | 5.7 | 13.2 | 10.5 | 4.7 | -1.2 | -7.9 | -12.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.3 | 10.4 | 11.9 | 13.5 | 14.8 | 15.5 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 2.3 | 5.4 | 5.5 | 7.8 | 10.9 | 9.3 | 10.2 | 9.8 | 8.6 | 5.6 | 4.4 | 3.2 |
| Precipitation (mm) | 113 | 78 | 97 | 109 | 62 | 144 | 296 | 246 | 53 | 148 | 83 | 152 |
| Sunny days | 3 | 4 | 6 | 12 | 18 | 8 | 4 | 6 | 17 | 8 | 9 | 12 |
| Rainy days | 12 | 12 | 14 | 18 | 13 | 22 | 27 | 25 | 13 | 23 | 15 | 13 |
| Snow days | 16 | 12 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 6 |
The best time to visit Town of Fairfax during the most sunny months:
Months with the longest average daylight duration in Town of Fairfax:
The largest precipitation sum in Town of Fairfax is at