Average annual temperature is 11.5 °C
Absolute maximum temperature: 31.2 °C
Absolute minimum temperature: -24.0 °C
Number of sunny days: 161 days
Number of rainy days: 196 days
Number of snow days: 8 days
Look at detailed online map of Cohasset
* Weather data for Cohasset 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) | 12.7 | 15.8 | 15.4 | 26.0 | 28.7 | 28.0 | 31.2 | 29.4 | 30.6 | 26.2 | 18.6 | 16.1 |
| Average daytime temperature (°C) | 6.5 | 6.1 | 7.5 | 13.5 | 19.3 | 21.3 | 27.1 | 25.1 | 22.1 | 18.2 | 9.6 | 7.8 |
| Average temperature (°C) | 3.3 | 1.6 | 3.9 | 9.4 | 14.1 | 17.4 | 23.1 | 20.9 | 18.9 | 14.3 | 5.7 | 4.7 |
| Average night temperature (°C) | 0.5 | -2.2 | 0.9 | 6.1 | 10.0 | 14.4 | 19.8 | 17.7 | 16.5 | 11.4 | 2.8 | 2.2 |
| Absolute minimum temperature (°C) | -4.3 | -24.0 | -3.0 | -1.0 | 5.6 | 9.3 | 15.3 | 14.2 | 12.7 | 4.5 | -3.2 | -5.1 |
| 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 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.0 | 6.0 | 7.3 | 8.5 | 11.8 | 10.0 | 11.1 | 9.7 | 7.7 | 7.9 | 6.9 | 5.2 |
| Precipitation (mm) | 181 | 57 | 130 | 55 | 71 | 119 | 121 | 148 | 160 | 75 | 34 | 156 |
| Sunny days | 8 | 9 | 13 | 15 | 21 | 8 | 8 | 14 | 13 | 15 | 22 | 15 |
| Rainy days | 21 | 15 | 16 | 15 | 10 | 22 | 23 | 17 | 17 | 16 | 8 | 16 |
| Snow days | 2 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Cohasset during the most sunny months:
The largest precipitation sum in Cohasset is at