Average annual temperature is 11.6 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: -22.5 °C
Number of sunny days: 166 days
Number of rainy days: 191 days
Number of snow days: 8 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 | 18.2 | 14.4 | 31.6 | 26.8 | 32.2 | 31.6 | 29.2 | 34.2 | 27.7 | 17.8 | 16.2 |
| Average daytime temperature (°C) | 7.0 | 6.4 | 8.7 | 17.1 | 20.5 | 24.2 | 28.2 | 25.5 | 23.0 | 18.5 | 9.9 | 8.4 |
| Average temperature (°C) | 3.4 | 1.7 | 3.8 | 11.1 | 14.5 | 18.4 | 23.3 | 21.0 | 18.6 | 13.8 | 5.1 | 4.3 |
| Average night temperature (°C) | 0.1 | -2.5 | -0.2 | 6.3 | 9.0 | 13.9 | 19.6 | 17.3 | 15.2 | 10.3 | 1.4 | 1.0 |
| Absolute minimum temperature (°C) | -4.9 | -22.5 | -4.4 | -1.9 | 3.1 | 7.2 | 14.3 | 12.9 | 8.7 | 3.6 | -4.6 | -6.7 |
| 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) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.3 | 6.5 | 7.5 | 8.6 | 11.9 | 10.2 | 11.1 | 9.7 | 7.4 | 7.8 | 7.0 | 5.4 |
| Precipitation (mm) | 181 | 55 | 121 | 101 | 95 | 62 | 215 | 190 | 236 | 77 | 55 | 237 |
| Sunny days | 6 | 16 | 15 | 16 | 21 | 5 | 6 | 10 | 16 | 16 | 21 | 18 |
| Rainy days | 20 | 11 | 14 | 14 | 10 | 25 | 25 | 21 | 14 | 15 | 9 | 13 |
| Snow days | 5 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Colchester during the most sunny months:
The largest precipitation sum in Colchester is at