Average annual temperature is 8.7 °C
Absolute maximum temperature: 32.7 °C
Absolute minimum temperature: -30.8 °C
Number of sunny days: 121 days
Number of rainy days: 206 days
Number of snow days: 38 days
Look at detailed online map of Town of Colchester
* Weather data for Town of Colchester 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) | 8.4 | 11.1 | 9.6 | 25.9 | 30.3 | 32.7 | 31.0 | 26.0 | 29.9 | 27.1 | 14.2 | 10.3 |
| Average daytime temperature (°C) | 1.0 | 1.3 | 3.7 | 14.0 | 18.8 | 22.7 | 26.1 | 22.8 | 21.6 | 15.6 | 5.8 | 3.7 |
| Average temperature (°C) | -2.1 | -4.4 | -0.5 | 7.9 | 12.7 | 17.8 | 21.5 | 18.7 | 17.1 | 12.1 | 2.0 | 0.6 |
| Average night temperature (°C) | -5.1 | -9.3 | -4.4 | 3.0 | 7.1 | 13.4 | 17.8 | 15.3 | 13.2 | 9.2 | -0.8 | -1.8 |
| Absolute minimum temperature (°C) | -14.1 | -30.8 | -12.5 | -5.5 | 0.1 | 6.7 | 13.9 | 10.3 | 6.2 | 0.3 | -6.6 | -9.7 |
| 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) | 2.6 | 5.6 | 5.8 | 7.7 | 11.4 | 10.3 | 10.6 | 10.2 | 8.9 | 6.1 | 5.6 | 3.4 |
| Precipitation (mm) | 103 | 65 | 87 | 96 | 74 | 127 | 230 | 211 | 60 | 147 | 83 | 156 |
| Sunny days | 5 | 7 | 9 | 14 | 20 | 10 | 3 | 5 | 17 | 10 | 8 | 13 |
| Rainy days | 12 | 14 | 13 | 16 | 11 | 20 | 28 | 26 | 13 | 21 | 17 | 15 |
| Snow days | 14 | 7 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 3 |
The best time to visit Town of Colchester during the most sunny months:
Months with the longest average daylight duration in Town of Colchester:
The largest precipitation sum in Town of Colchester is at