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Boston weather by month
Check out Boston weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Boston (°C)
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Max temperature (daytime) | 1 |
3 |
8 |
14 |
20 |
25 |
28 |
27 |
23 |
17 |
11 |
4 |
Min temperature (night-time) | -8 |
-7 |
-2 |
3 |
9 |
14 |
17 |
16 |
12 |
6 |
2 |
-5 |
Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
L |
M |
L |
0 |
0 |
0 |
0 |
Sea temperature | 4 |
3 |
3 |
5 |
9 |
14 |
18 |
18 |
16 |
13 |
9 |
7 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & Daylight in Boston
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Daily hours of sunshine | ||||||||||||
Daily hours of daylight | 9 |
11 |
12 |
13 |
15 |
15 |
15 |
14 |
12 |
11 |
10 |
9 |
UV Index (Maximum) | 1 |
2 |
4 |
5 |
7 |
8 |
8 |
8 |
6 |
4 |
2 |
1 |
Rainfall in Boston
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of days with some rain | 11 |
10 |
11 |
11 |
11 |
11 |
9 |
10 |
8 |
9 |
11 |
12 |
Average monthly rainfall (mm) | 93 |
93 |
97 |
93 |
85 |
80 |
75 |
85 |
82 |
87 |
111 |
105 |
More about Boston
Boston by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Boston
The climate guide for Massachusetts (Boston) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
What's the climate like in Boston?
Boston has a cold climate with hot summers and some rainfall in all months.
Metric (°C / mm) | Imperial (°F / inches)
Tropical storm risk: Boston, Massachusetts hurricane season
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More about the USA
Compare Boston with the UK
Below the Boston chart shows average maximum daytime temperature for Boston, Massachusetts, USA and the UK (London).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
Compare more Boston weather >>
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