Average annual temperature is 8.1 °C
Absolute maximum temperature: 33.1 °C
Absolute minimum temperature: -30.8 °C
Number of sunny days: 140 days
Number of rainy days: 198 days
Number of snow days: 27 days
Look at detailed online map of Town of Thetford
* Weather data for Town of Thetford 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) | 7.0 | 9.6 | 10.2 | 26.4 | 31.1 | 33.1 | 30.3 | 25.7 | 29.9 | 27.2 | 13.9 | 13.7 |
| Average daytime temperature (°C) | 1.6 | 1.3 | 4.3 | 13.7 | 19.1 | 22.0 | 25.9 | 22.9 | 21.7 | 15.9 | 5.5 | 4.2 |
| Average temperature (°C) | -2.3 | -5.0 | -0.4 | 7.3 | 12.4 | 16.7 | 20.8 | 18.0 | 16.5 | 11.0 | 0.7 | 0.2 |
| Average night temperature (°C) | -5.9 | -10.3 | -4.7 | 2.5 | 6.2 | 12.2 | 16.7 | 13.8 | 12.3 | 7.2 | -3.0 | -2.6 |
| Absolute minimum temperature (°C) | -16.1 | -30.8 | -10.1 | -5.6 | -1.6 | 5.6 | 11.8 | 7.8 | 6.2 | -1.2 | -9.1 | -10.5 |
| 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 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 9.0 |
| 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) | 3.4 | 6.0 | 6.5 | 7.6 | 11.3 | 8.9 | 10.1 | 10.3 | 8.6 | 6.0 | 6.5 | 4.1 |
| Precipitation (mm) | 109 | 44 | 70 | 88 | 78 | 205 | 265 | 193 | 73 | 118 | 53 | 149 |
| Sunny days | 7 | 11 | 13 | 14 | 17 | 5 | 2 | 5 | 17 | 12 | 23 | 14 |
| Rainy days | 13 | 9 | 11 | 16 | 14 | 25 | 29 | 26 | 13 | 19 | 7 | 16 |
| Snow days | 11 | 8 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Town of Thetford during the most sunny months:
Months with the longest average daylight duration in Town of Thetford:
The largest precipitation sum in Town of Thetford is at