Average annual temperature is 8.1 °C
Absolute maximum temperature: 32.1 °C
Absolute minimum temperature: -30.6 °C
Number of sunny days: 139 days
Number of rainy days: 179 days
Number of snow days: 47 days
Look at detailed online map of Town of Chatham
* Weather data for Town of Chatham 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) | 8.0 | 10.5 | 9.8 | 26.5 | 29.7 | 32.1 | 30.1 | 26.5 | 30.3 | 28.1 | 13.8 | 12.5 |
| Average daytime temperature (°C) | 1.9 | 0.5 | 4.1 | 11.7 | 18.8 | 20.7 | 25.6 | 22.7 | 22.1 | 16.0 | 5.6 | 3.9 |
| Average temperature (°C) | -1.9 | -5.2 | -0.1 | 6.1 | 12.5 | 16.4 | 21.1 | 18.0 | 17.3 | 11.4 | 0.8 | 0.0 |
| Average night temperature (°C) | -5.4 | -10.5 | -4.1 | 1.4 | 6.5 | 12.7 | 17.1 | 13.7 | 13.3 | 7.5 | -3.0 | -3.1 |
| Absolute minimum temperature (°C) | -13.7 | -30.6 | -12.3 | -10.1 | -2.6 | 6.9 | 10.7 | 8.5 | 8.0 | -1.0 | -9.2 | -12.2 |
| 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 | 13.5 | 14.8 | 15.4 | 15.1 | 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) | 4.1 | 6.8 | 7.6 | 7.8 | 11.4 | 7.6 | 9.9 | 9.5 | 8.4 | 6.4 | 7.0 | 4.3 |
| Precipitation (mm) | 153 | 48 | 88 | 132 | 192 | 256 | 206 | 184 | 126 | 139 | 65 | 210 |
| Sunny days | 9 | 11 | 12 | 15 | 20 | 4 | 4 | 7 | 14 | 11 | 18 | 14 |
| Rainy days | 10 | 4 | 5 | 15 | 11 | 26 | 27 | 24 | 16 | 20 | 8 | 13 |
| Snow days | 12 | 13 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 |
The best time to visit Town of Chatham during the most sunny months:
Months with the longest average daylight duration in Town of Chatham:
The largest precipitation sum in Town of Chatham is at