Yearly weather and climate in Boston, United States
The yearly weather in Boston runs from around -4°C in February to 29°C in July. November is the driest month at 6 rainy days; January the wettest at 15. Here is the annual climate data, so you know what you are packing for.
Best time to visit
Weather is fairly consistent year-round. Pack for stable conditions.
Sunshine
Expect up to 11.4 hours of clear skies in Jul, but only 4.8 hours in Jan. Pack sunglasses and SPF accordingly.
Rainfall
It rains the most in Jan (175mm over 15 days). A reliable rain jacket is a must-have if visiting then.
Day-to-night swings
Temperatures typically drop by 9°C from day to night. Make sure to pack layers for the evenings.
Average temperatures and rainfall
Daily highs and lows in Boston, averaged over 10 years of recorded weather, with the number of days it typically rains.
- 540°-327°15Jan
- 642°-425°7Feb
- 947°032°13Mar
- 1457°440°8Apr
- 2068°1049°11May
- 2577°1559°14Jun
- 2984°2067°15Jul
- 2679°1763°13Aug
- 2373°1458°10Sep
- 1864°948°7Oct
- 1151°236°6Nov
- 643°-129°11Dec
Bars span the average daily low to high. Numbers under the drop are rainy days per month (1mm or more) — hover a month for its total rainfall. Nov is typically driest at 6 days (60mm); Jan the wettest at 15 days (175mm).
| Month | Average high | Average low | Rainy days | Total rainfall |
|---|---|---|---|---|
| Jan | 5°C | -3°C | 15 | 175mm |
| Feb | 6°C | -4°C | 7 | 44mm |
| Mar | 9°C | 0°C | 13 | 171mm |
| Apr | 14°C | 4°C | 8 | 78mm |
| May | 20°C | 10°C | 11 | 101mm |
| Jun | 25°C | 15°C | 14 | 99mm |
| Jul | 29°C | 20°C | 15 | 132mm |
| Aug | 26°C | 17°C | 13 | 111mm |
| Sep | 23°C | 14°C | 10 | 139mm |
| Oct | 18°C | 9°C | 7 | 54mm |
| Nov | 11°C | 2°C | 6 | 60mm |
| Dec | 6°C | -1°C | 11 | 151mm |
Weather data by Open-Meteo.com
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