Massachusetts weather by month

Check out Massachusetts weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Maximum daytime temperature °F	34	37	46	57	68	77	82	81	73	63	52	39
Hours of sunshine (daily)	5	6	7	7	8	9	9	9	8	7	5	5
Days with some rainfall	11	10	11	11	11	11	9	10	8	9	11	12
Sea temperature °F	39	37	37	41	48	57	64	64	61	55	48	45

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Massachusetts by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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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.

Top Massachusetts destinations

Below are average maximum temperatures at popular countries, regions and places in Massachusetts for next month - December. Select a destination to see the climate guide for all months of the year.

All Massachusetts destinations

Massachusetts weather in January

Expect daytime maximum temperatures of 34°F in Massachusetts, USA in January based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 3.7 inches of rainfall in the month, which might fall as snow.

34
34°F max day temperature
5
5 hours of sunshine per day
11
11 days with some rainfall
18
18°F min night temperature
9
9 hours of daylight per day
0
No heat & humidity
3.7
3.7 inches of monthly rainfall
1
1 (Low) UV index
39
39°F sea temperature

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Massachusetts weather in February

Expect daytime maximum temperatures of 37°F in Massachusetts, USA in February based on long-term weather averages. There are 6 hours of sunshine per day on average with 10 days with some rainfall and typically 3.7 inches of rainfall in the month, which might fall as snow.

37
37°F max day temperature
6
6 hours of sunshine per day
10
10 days with some rainfall
19
19°F min night temperature
11
11 hours of daylight per day
0
No heat & humidity
3.7
3.7 inches of monthly rainfall
2
2 (Low) UV index
37
37°F sea temperature

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Massachusetts weather in March

Expect daytime maximum temperatures of 46°F in Massachusetts, USA in March based on long-term weather averages. There are 7 hours of sunshine per day on average with 11 days with some rainfall and typically 3.8 inches of rainfall in the month.

46
46°F max day temperature
7
7 hours of sunshine per day
11
11 days with some rainfall
28
28°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
3.8
3.8 inches of monthly rainfall
4
4 (Moderate) UV index
37
37°F sea temperature

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Massachusetts weather in April

Expect daytime maximum temperatures of 57°F in Massachusetts, USA in April based on long-term weather averages. There are 7 hours of sunshine per day on average with 11 days with some rainfall and typically 3.7 inches of rainfall in the month.

57
57°F max day temperature
7
7 hours of sunshine per day
11
11 days with some rainfall
37
37°F min night temperature
13
13 hours of daylight per day
0
No heat & humidity
3.7
3.7 inches of monthly rainfall
5
5 (Moderate) UV index
41
41°F sea temperature

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Massachusetts weather in May

Expect daytime maximum temperatures of 68°F in Massachusetts, USA in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 3.3 inches of rainfall in the month.

68
68°F max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
48
48°F min night temperature
15
15 hours of daylight per day
0
No heat & humidity
3.3
3.3 inches of monthly rainfall
7
7 (High) UV index
48
48°F sea temperature

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Massachusetts weather in June

Expect daytime maximum temperatures of 77°F in Massachusetts, USA in June based on long-term weather averages. There are 9 hours of sunshine per day on average with 11 days with some rainfall and typically 3.1 inches of rainfall in the month.

77
77°F max day temperature
9
9 hours of sunshine per day
11
11 days with some rainfall
57
57°F min night temperature
15
15 hours of daylight per day
L
Low heat & humidity
3.1
3.1 inches of monthly rainfall
8
8 (Very High) UV index
57
57°F sea temperature

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Massachusetts weather in July

Expect daytime maximum temperatures of 82°F in Massachusetts, USA in July based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 3.0 inches of rainfall in the month.

82
82°F max day temperature
9
9 hours of sunshine per day
9
9 days with some rainfall
63
63°F min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
3.0
3.0 inches of monthly rainfall
8
8 (Very High) UV index
64
64°F sea temperature

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Massachusetts weather in August

Expect daytime maximum temperatures of 81°F in Massachusetts, USA in August based on long-term weather averages. There are 9 hours of sunshine per day on average with 10 days with some rainfall and typically 3.3 inches of rainfall in the month.

81
81°F max day temperature
9
9 hours of sunshine per day
10
10 days with some rainfall
61
61°F min night temperature
14
14 hours of daylight per day
L
Low heat & humidity
3.3
3.3 inches of monthly rainfall
8
8 (Very High) UV index
64
64°F sea temperature

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Massachusetts weather in September

Expect daytime maximum temperatures of 73°F in Massachusetts, USA in September based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 3.2 inches of rainfall in the month.

73
73°F max day temperature
8
8 hours of sunshine per day
8
8 days with some rainfall
54
54°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
3.2
3.2 inches of monthly rainfall
6
6 (High) UV index
61
61°F sea temperature

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Massachusetts weather in October

Expect daytime maximum temperatures of 63°F in Massachusetts, USA in October based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 3.4 inches of rainfall in the month.

63
63°F max day temperature
7
7 hours of sunshine per day
9
9 days with some rainfall
43
43°F min night temperature
11
11 hours of daylight per day
0
No heat & humidity
3.4
3.4 inches of monthly rainfall
4
4 (Moderate) UV index
55
55°F sea temperature

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Massachusetts weather in November

Expect daytime maximum temperatures of 52°F in Massachusetts, USA in November based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 4.4 inches of rainfall in the month.

52
52°F max day temperature
5
5 hours of sunshine per day
11
11 days with some rainfall
36
36°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
4.4
4.4 inches of monthly rainfall
2
2 (Low) UV index
48
48°F sea temperature

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Massachusetts weather in December

Expect daytime maximum temperatures of 39°F in Massachusetts, USA in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 4.1 inches of rainfall in the month, which might fall as snow.

39
39°F max day temperature
5
5 hours of sunshine per day
12
12 days with some rainfall
23
23°F min night temperature
9
9 hours of daylight per day
0
No heat & humidity
4.1
4.1 inches of monthly rainfall
1
1 (Low) UV index
45
45°F sea temperature

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