Weather in Boston 🇺🇸
Monthly weather averages & travel planning
Avg Temp
28°C
Rain Days
10 days
Sun Hours
12 hrs
Humidity
65%
Boston Weather Guide
Complete monthly climate data for Boston, 🇺🇸 United States
January
2°/-6°C
10 rain days, 6h sun
February
3°/-6°C
9 rain days, 7h sun
March
7°/-2°C
11 rain days, 8h sun
April
14°/4°C
11 rain days, 9h sun
May
19°/10°C
11 rain days, 10h sun
June
25°/15°C
10 rain days, 11h sun
July
28°/19°C
10 rain days, 12h sun
August
27°/18°C
9 rain days, 11h sun
September
23°/15°C
8 rain days, 9h sun
October
16°/9°C
10 rain days, 8h sun
November
10°/3°C
10 rain days, 6h sun
December
5°/-2°C
11 rain days, 6h sun
Year-Round Climate
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 2°C | -6°C | 10 | 6h | View |
| February | 3°C | -6°C | 9 | 7h | View |
| March | 7°C | -2°C | 11 | 8h | View |
| April | 14°C | 4°C | 11 | 9h | View |
| May | 19°C | 10°C | 11 | 10h | View |
| June | 25°C | 15°C | 10 | 11h | View |
| July | 28°C | 19°C | 10 | 12h | View |
| August | 27°C | 18°C | 9 | 11h | View |
| September | 23°C | 15°C | 8 | 9h | View |
| October | 16°C | 9°C | 10 | 8h | View |
| November | 10°C | 3°C | 10 | 6h | View |
| December | 5°C | -2°C | 11 | 6h | View |
January
10 rain days, 6h sun
2°-6°
February
9 rain days, 7h sun
3°-6°
March
11 rain days, 8h sun
7°-2°
April
11 rain days, 9h sun
14°4°
May
11 rain days, 10h sun
19°10°
June
10 rain days, 11h sun
25°15°
July
10 rain days, 12h sun
28°19°
August
9 rain days, 11h sun
27°18°
September
8 rain days, 9h sun
23°15°
October
10 rain days, 8h sun
16°9°
November
10 rain days, 6h sun
10°3°
December
11 rain days, 6h sun
5°-2°
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.