Average annual temperature is 10.6 °C
Absolute maximum temperature: 32.0 °C
Absolute minimum temperature: -20.4 °C
Number of sunny days: 154 days
Number of rainy days: 191 days
Number of snow days: 20 days
Look at detailed online map of Chatham
* Weather data for Chatham Canada is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.3 | 15.3 | 15.9 | 26.3 | 29.0 | 32.0 | 30.6 | 28.8 | 31.0 | 27.5 | 15.6 | 14.7 |
| Average daytime temperature (°C) | 3.7 | 5.7 | 6.6 | 15.0 | 20.6 | 24.6 | 27.0 | 24.9 | 23.2 | 16.3 | 9.0 | 7.1 |
| Average temperature (°C) | 0.5 | 0.1 | 2.1 | 9.2 | 13.8 | 19.2 | 22.1 | 20.2 | 18.4 | 12.5 | 4.8 | 4.1 |
| Average night temperature (°C) | -2.1 | -3.8 | -1.4 | 4.1 | 7.7 | 13.8 | 17.6 | 16.0 | 14.4 | 9.3 | 1.0 | 1.7 |
| Absolute minimum temperature (°C) | -18.1 | -20.4 | -6.9 | -4.7 | -0.1 | 7.8 | 12.9 | 8.7 | 7.7 | -2.5 | -6.4 | -4.6 |
| 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) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.3 | 6.9 | 6.6 | 8.5 | 11.2 | 11.9 | 11.9 | 10.2 | 9.3 | 5.6 | 6.2 | 3.7 |
| Precipitation (mm) | 86 | 72 | 84 | 107 | 42 | 128 | 108 | 90 | 25 | 72 | 55 | 66 |
| Sunny days | 8 | 13 | 11 | 12 | 22 | 17 | 6 | 11 | 16 | 9 | 17 | 12 |
| Rainy days | 17 | 11 | 15 | 18 | 9 | 13 | 25 | 20 | 14 | 22 | 10 | 17 |
| Snow days | 6 | 4 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 2 |
The best time to visit Chatham during the most sunny months:
The largest precipitation sum in Chatham is at