Average annual temperature is 7.8 °C
Absolute maximum temperature: 32.9 °C
Absolute minimum temperature: -30.5 °C
Number of sunny days: 146 days
Number of rainy days: 178 days
Number of snow days: 41 days
Look at detailed online map of Town of Willimantic
* Weather data for Town of Willimantic 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) | 5.8 | 7.3 | 6.7 | 21.2 | 30.1 | 32.9 | 31.0 | 26.2 | 30.9 | 27.0 | 12.3 | 12.1 |
| Average daytime temperature (°C) | 0.6 | -2.0 | 3.6 | 10.8 | 18.3 | 20.9 | 26.1 | 22.5 | 22.6 | 16.3 | 4.9 | 2.6 |
| Average temperature (°C) | -3.3 | -7.0 | -0.4 | 5.4 | 12.0 | 16.2 | 21.8 | 18.4 | 17.6 | 11.9 | 0.8 | -1.4 |
| Average night temperature (°C) | -6.5 | -11.5 | -3.7 | 0.9 | 6.4 | 12.5 | 18.5 | 15.0 | 13.8 | 8.6 | -2.4 | -4.5 |
| Absolute minimum temperature (°C) | -14.6 | -30.5 | -11.2 | -8.4 | 0.5 | 6.3 | 13.6 | 11.3 | 7.5 | -0.2 | -9.1 | -12.5 |
| 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) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.3 | 14.1 | 12.5 | 11.0 | 9.5 | 8.8 |
| 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) | 3.7 | 6.5 | 7.3 | 8.1 | 10.7 | 6.6 | 9.8 | 9.3 | 9.0 | 6.0 | 6.6 | 4.3 |
| Precipitation (mm) | 145 | 38 | 69 | 79 | 140 | 174 | 189 | 190 | 96 | 168 | 74 | 155 |
| Sunny days | 9 | 11 | 14 | 15 | 18 | 5 | 2 | 8 | 16 | 9 | 20 | 19 |
| Rainy days | 10 | 4 | 7 | 13 | 13 | 25 | 29 | 23 | 14 | 22 | 8 | 10 |
| Snow days | 12 | 13 | 10 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Town of Willimantic during the most sunny months:
Months with the longest average daylight duration in Town of Willimantic:
The largest precipitation sum in Town of Willimantic is at