Average annual temperature is 25.0 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: 4.6 °C
Number of sunny days: 116 days
Number of rainy days: 249 days
Look at detailed online map of Chatham
* Weather data for 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) | 30.7 | 30.5 | 31.3 | 33.1 | 35.4 | 33.0 | 35.9 | 35.8 | 33.6 | 32.3 | 31.8 | 29.1 |
| Average daytime temperature (°C) | 25.1 | 27.7 | 28.2 | 29.0 | 30.4 | 30.5 | 33.0 | 32.7 | 31.4 | 29.9 | 28.1 | 23.6 |
| Average temperature (°C) | 20.2 | 22.8 | 23.6 | 24.8 | 26.0 | 27.2 | 29.1 | 29.0 | 27.6 | 25.7 | 23.5 | 20.1 |
| Average night temperature (°C) | 16.1 | 18.7 | 19.3 | 20.7 | 21.6 | 24.1 | 25.6 | 25.9 | 24.5 | 22.1 | 19.9 | 17.1 |
| Absolute minimum temperature (°C) | 4.6 | 11.5 | 13.1 | 17.6 | 17.9 | 21.0 | 24.1 | 24.4 | 22.3 | 14.9 | 12.6 | 11.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.7 | 11.3 | 12.0 | 12.8 | 13.4 | 13.7 | 13.6 | 13.0 | 12.3 | 11.6 | 10.9 | 10.6 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.3 | 10.3 | 10.7 | 11.1 | 12.2 | 11.6 | 10.9 | 10.4 | 10.0 | 9.8 | 9.1 | 6.9 |
| Precipitation (mm) | 19 | 7 | 20 | 95 | 50 | 156 | 97 | 119 | 154 | 90 | 86 | 136 |
| Sunny days | 21 | 20 | 15 | 2 | 11 | 0 | 2 | 0 | 0 | 15 | 15 | 15 |
| Rainy days | 10 | 8 | 16 | 28 | 20 | 30 | 29 | 31 | 30 | 16 | 15 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Chatham is at