Average annual temperature is 12.9 °C
Absolute maximum temperature: 36.8 °C
Absolute minimum temperature: -16.2 °C
Number of sunny days: 197 days
Number of rainy days: 153 days
Number of snow days: 15 days
Look at detailed online map of Colchester
* Weather data for 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) | 17.2 | 13.4 | 21.5 | 26.8 | 32.7 | 33.9 | 36.0 | 36.8 | 32.2 | 30.5 | 22.5 | 15.6 |
| Average daytime temperature (°C) | 4.7 | 7.7 | 9.9 | 18.6 | 26.1 | 30.1 | 29.7 | 28.3 | 26.5 | 18.8 | 11.5 | 7.9 |
| Average temperature (°C) | 0.2 | 1.9 | 4.3 | 11.7 | 19.4 | 23.8 | 24.2 | 23.4 | 20.7 | 14.0 | 6.4 | 4.0 |
| Average night temperature (°C) | -2.7 | -2.5 | 0.3 | 5.9 | 13.0 | 17.7 | 19.2 | 19.1 | 15.9 | 9.9 | 2.1 | 1.4 |
| Absolute minimum temperature (°C) | -15.0 | -16.2 | -11.3 | -1.1 | 4.8 | 10.2 | 14.9 | 12.1 | 11.0 | -2.4 | -9.7 | -7.1 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.3 |
| 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) | 4.7 | 7.5 | 6.6 | 9.9 | 11.5 | 12.8 | 12.4 | 10.2 | 10.3 | 7.4 | 7.8 | 4.6 |
| Precipitation (mm) | 47 | 78 | 85 | 36 | 35 | 23 | 93 | 182 | 21 | 82 | 16 | 75 |
| Sunny days | 16 | 18 | 12 | 16 | 21 | 19 | 11 | 12 | 18 | 15 | 23 | 16 |
| Rainy days | 7 | 8 | 18 | 13 | 10 | 11 | 20 | 19 | 12 | 16 | 6 | 13 |
| Snow days | 8 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Colchester during the most sunny months:
The largest precipitation sum in Colchester is at