Average annual temperature is 12.8 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: -15.8 °C
Number of sunny days: 166 days
Number of rainy days: 193 days
Number of snow days: 6 days
Look at detailed online map of Borough of Chatham
* Weather data for Borough 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) | 18.8 | 19.9 | 16.2 | 32.2 | 29.6 | 34.9 | 34.2 | 31.1 | 34.9 | 28.2 | 19.8 | 16.2 |
| Average daytime temperature (°C) | 8.4 | 8.4 | 10.3 | 18.8 | 22.5 | 26.3 | 30.3 | 27.7 | 24.3 | 19.4 | 11.1 | 8.9 |
| Average temperature (°C) | 4.5 | 3.2 | 4.9 | 12.6 | 15.9 | 20.0 | 24.3 | 22.5 | 19.4 | 14.3 | 6.1 | 4.7 |
| Average night temperature (°C) | 1.2 | -1.2 | 0.4 | 7.4 | 9.7 | 14.9 | 19.6 | 18.2 | 15.6 | 10.3 | 2.0 | 1.4 |
| Absolute minimum temperature (°C) | -4.3 | -15.8 | -4.7 | -0.5 | 3.9 | 9.3 | 15.8 | 14.9 | 9.2 | 5.1 | -4.7 | -5.3 |
| 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 | 10.7 | 11.9 | 13.3 | 14.5 | 15.0 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 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) | 4.6 | 6.7 | 7.4 | 8.9 | 12.0 | 10.6 | 11.5 | 10.2 | 7.9 | 7.8 | 7.5 | 4.9 |
| Precipitation (mm) | 128 | 44 | 106 | 118 | 32 | 91 | 140 | 105 | 235 | 97 | 79 | 216 |
| Sunny days | 13 | 18 | 11 | 15 | 18 | 9 | 7 | 12 | 13 | 18 | 18 | 14 |
| Rainy days | 17 | 8 | 19 | 15 | 13 | 21 | 24 | 19 | 17 | 13 | 12 | 15 |
| Snow days | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Borough of Chatham during the most sunny months:
The largest precipitation sum in Borough of Chatham is at