Average annual temperature is 19.3 °C
Absolute maximum temperature: 36.7 °C
Absolute minimum temperature: -0.4 °C
Number of sunny days: 158 days
Number of rainy days: 207 days
Look at detailed online map of Dorchester (historical)
* Weather data for Dorchester (historical) 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) | 23.2 | 27.8 | 28.5 | 29.3 | 32.9 | 34.1 | 36.7 | 35.9 | 35.1 | 29.9 | 27.0 | 23.3 |
| Average daytime temperature (°C) | 17.7 | 20.7 | 21.4 | 25.1 | 26.2 | 30.2 | 33.2 | 33.1 | 29.8 | 25.1 | 19.3 | 16.7 |
| Average temperature (°C) | 12.1 | 15.0 | 15.8 | 19.0 | 20.8 | 24.4 | 27.5 | 27.4 | 23.9 | 19.2 | 14.0 | 11.7 |
| Average night temperature (°C) | 8.0 | 10.8 | 11.4 | 14.3 | 16.3 | 20.3 | 23.7 | 23.6 | 19.5 | 15.0 | 10.1 | 8.3 |
| Absolute minimum temperature (°C) | -0.4 | 0.4 | 1.2 | 6.7 | 10.6 | 15.3 | 20.5 | 20.9 | 16.6 | 9.5 | 1.7 | 0.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 7.9 | 8.7 | 10.1 | 9.9 | 10.6 | 11.0 | 11.1 | 10.2 | 9.1 | 7.2 | 6.7 |
| Precipitation (mm) | 113 | 114 | 55 | 124 | 120 | 148 | 192 | 153 | 95 | 64 | 64 | 179 |
| Sunny days | 18 | 15 | 18 | 12 | 9 | 5 | 1 | 4 | 16 | 20 | 20 | 20 |
| Rainy days | 13 | 13 | 13 | 18 | 22 | 25 | 30 | 27 | 14 | 11 | 10 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Dorchester (historical) is at