Weather in Boston 🇺🇸
Monthly weather averages & travel planning
Avg Temp
22°C
Rain Days
6 days
Sun Hours
7 hrs
Humidity
65%
Boston Weather Guide
Complete monthly climate data for Boston, 🇺🇸 United States
January
4°/-8°C
3 rain days, 1h sun
February
8°/-4°C
3 rain days, 3h sun
March
13°/1°C
4 rain days, 4h sun
April
19°/7°C
5 rain days, 6h sun
May
22°/10°C
6 rain days, 7h sun
June
24°/12°C
6 rain days, 7h sun
July
22°/10°C
6 rain days, 7h sun
August
19°/7°C
5 rain days, 6h sun
September
13°/1°C
4 rain days, 4h sun
October
8°/-4°C
3 rain days, 3h sun
November
4°/-8°C
3 rain days, 1h sun
December
3°/-9°C
3 rain days, 1h sun
Year-Round Climate
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 4°C | -8°C | 3 | 1h | View |
| February | 8°C | -4°C | 3 | 3h | View |
| March | 13°C | 1°C | 4 | 4h | View |
| April | 19°C | 7°C | 5 | 6h | View |
| May | 22°C | 10°C | 6 | 7h | View |
| June | 24°C | 12°C | 6 | 7h | View |
| July | 22°C | 10°C | 6 | 7h | View |
| August | 19°C | 7°C | 5 | 6h | View |
| September | 13°C | 1°C | 4 | 4h | View |
| October | 8°C | -4°C | 3 | 3h | View |
| November | 4°C | -8°C | 3 | 1h | View |
| December | 3°C | -9°C | 3 | 1h | View |
January
3 rain days, 1h sun
4°-8°
February
3 rain days, 3h sun
8°-4°
March
4 rain days, 4h sun
13°1°
April
5 rain days, 6h sun
19°7°
May
6 rain days, 7h sun
22°10°
June
6 rain days, 7h sun
24°12°
July
6 rain days, 7h sun
22°10°
August
5 rain days, 6h sun
19°7°
September
4 rain days, 4h sun
13°1°
October
3 rain days, 3h sun
8°-4°
November
3 rain days, 1h sun
4°-8°
December
3 rain days, 1h sun
3°-9°
Rainfall (mm)
0-20 mm21-50 mm51-100 mm100+ mm
Travel Planning
Data Sources for Boston
Climate normals represent 30-year averages (1991-2020). Individual years may vary.