Average annual temperature is 11.3 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -24.6 °C
Number of sunny days: 161 days
Number of rainy days: 193 days
Number of snow days: 11 days
Look at detailed online map of Boston
* Weather data for Boston 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) | 12.8 | 15.6 | 15.9 | 29.6 | 30.8 | 31.5 | 32.7 | 29.6 | 33.6 | 27.3 | 18.8 | 15.9 |
| Average daytime temperature (°C) | 6.1 | 6.0 | 8.0 | 14.7 | 20.9 | 23.0 | 28.5 | 25.7 | 23.0 | 18.8 | 9.4 | 7.9 |
| Average temperature (°C) | 2.4 | 0.9 | 3.4 | 9.6 | 14.6 | 18.0 | 23.7 | 21.0 | 18.8 | 13.9 | 4.5 | 3.7 |
| Average night temperature (°C) | -0.8 | -3.7 | -0.7 | 5.5 | 9.0 | 14.0 | 19.6 | 17.1 | 15.4 | 10.0 | 0.7 | 0.6 |
| Absolute minimum temperature (°C) | -6.0 | -24.6 | -8.9 | -3.0 | 2.9 | 8.0 | 14.4 | 13.0 | 8.2 | 2.7 | -4.7 | -6.6 |
| 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) | 3.9 | 6.1 | 7.3 | 8.4 | 11.5 | 9.4 | 11.0 | 9.6 | 7.5 | 7.6 | 6.9 | 5.3 |
| Precipitation (mm) | 161 | 52 | 128 | 60 | 72 | 118 | 175 | 144 | 221 | 81 | 47 | 165 |
| Sunny days | 10 | 11 | 12 | 15 | 20 | 7 | 6 | 13 | 10 | 17 | 23 | 17 |
| Rainy days | 17 | 13 | 16 | 15 | 11 | 23 | 25 | 18 | 20 | 14 | 7 | 14 |
| Snow days | 4 | 4 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Boston during the most sunny months:
The largest precipitation sum in Boston is at