Historical weather statistics for Boston, United States
Typical weather in Boston
July is typically the warmest month, with median daily highs near 27.8 °C and lows near 19.4 °C. January is typically the coolest month, with median daily highs near 2.3 °C and lows near -4.3 °C. Median precipitation probability is highest in May, at about 34.3 %. Median relative humidity reaches its annual high in December, at about 93.3 %. These are historical climate statistics, not a day-to-day forecast.
Monthly values are medians of historical daily weather statistics. They describe typical conditions and are not a forecast.
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| Month | Daily max temperature (°C) | Daily min temperature (°C) | Wind chance (%) | Humidity (%) | Precipitation chance (%) | Snow depth (cm) |
|---|---|---|---|---|---|---|
| January | 2.3 °C | -4.3 °C | 11.8 % | 91.7 % | 29.3 % | 3.5 cm |
| February | 3.2 °C | -4.2 °C | 16.8 % | 91.8 % | 32.3 % | 5.0 cm |
| March | 6.5 °C | -1.2 °C | 12.7 % | 91.4 % | 33.0 % | 1.7 cm |
| April | 13.5 °C | 4.2 °C | 10.9 % | 91.2 % | 33.3 % | 0.0 cm |
| May | 18.7 °C | 9.5 °C | 4.5 % | 92.5 % | 34.3 % | 0.0 cm |
| June | 23.8 °C | 14.9 °C | 0.0 % | 92.7 % | 33.7 % | 0.0 cm |
| July | 27.8 °C | 19.4 °C | 0.0 % | 92.6 % | 34.0 % | 0.0 cm |
| August | 26.7 °C | 18.7 °C | 0.0 % | 92.5 % | 28.0 % | 0.0 cm |
| September | 22.7 °C | 15.2 °C | 2.7 % | 93.0 % | 26.2 % | 0.0 cm |
| October | 16.7 °C | 9.8 °C | 9.1 % | 93.2 % | 30.3 % | 0.0 cm |
| November | 10.1 °C | 3.1 °C | 11.4 % | 92.9 % | 27.7 % | 0.0 cm |
| December | 4.6 °C | -1.5 °C | 11.4 % | 93.3 % | 33.7 % | 0.6 cm |