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 °C	1	3	8	14	20	25	28	27	23	17	11	4
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 °C	4	3	3	5	9	14	18	18	16	13	9	7

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Massachusetts by month

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

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Destination

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.

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Massachusetts weather in January

Expect daytime maximum temperatures of 1°C 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 93 mm of rainfall in the month, which might fall as snow.

1
1°C max day temperature
5
5 hours of sunshine per day
11
11 days with some rainfall
-8
-8°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
93
93 mm of monthly rainfall
1
1 (Low) UV index
4
4°C sea temperature

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Massachusetts weather in February

Expect daytime maximum temperatures of 3°C 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 93 mm of rainfall in the month, which might fall as snow.

3
3°C max day temperature
6
6 hours of sunshine per day
10
10 days with some rainfall
-7
-7°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
93
93 mm of monthly rainfall
2
2 (Low) UV index
3
3°C sea temperature

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Massachusetts weather in March

Expect daytime maximum temperatures of 8°C 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 97 mm of rainfall in the month.

8
8°C max day temperature
7
7 hours of sunshine per day
11
11 days with some rainfall
-2
-2°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
97
97 mm of monthly rainfall
4
4 (Moderate) UV index
3
3°C sea temperature

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Massachusetts weather in April

Expect daytime maximum temperatures of 14°C 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 93 mm of rainfall in the month.

14
14°C max day temperature
7
7 hours of sunshine per day
11
11 days with some rainfall
3
3°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
93
93 mm of monthly rainfall
5
5 (Moderate) UV index
5
5°C sea temperature

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Massachusetts weather in May

Expect daytime maximum temperatures of 20°C 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 85 mm of rainfall in the month.

20
20°C max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
9
9°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
85
85 mm of monthly rainfall
7
7 (High) UV index
9
9°C sea temperature

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Massachusetts weather in June

Expect daytime maximum temperatures of 25°C 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 80 mm of rainfall in the month.

25
25°C max day temperature
9
9 hours of sunshine per day
11
11 days with some rainfall
14
14°C min night temperature
15
15 hours of daylight per day
L
Low heat & humidity
80
80 mm of monthly rainfall
8
8 (Very High) UV index
14
14°C sea temperature

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Massachusetts weather in July

Expect daytime maximum temperatures of 28°C in Massachusetts, USA in July based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 75 mm of rainfall in the month.

28
28°C max day temperature
9
9 hours of sunshine per day
9
9 days with some rainfall
17
17°C min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
75
75 mm of monthly rainfall
8
8 (Very High) UV index
18
18°C sea temperature

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Massachusetts weather in August

Expect daytime maximum temperatures of 27°C 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 85 mm of rainfall in the month.

27
27°C max day temperature
9
9 hours of sunshine per day
10
10 days with some rainfall
16
16°C min night temperature
14
14 hours of daylight per day
L
Low heat & humidity
85
85 mm of monthly rainfall
8
8 (Very High) UV index
18
18°C sea temperature

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Massachusetts weather in September

Expect daytime maximum temperatures of 23°C in Massachusetts, USA in September based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 82 mm of rainfall in the month.

23
23°C max day temperature
8
8 hours of sunshine per day
8
8 days with some rainfall
12
12°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
82
82 mm of monthly rainfall
6
6 (High) UV index
16
16°C sea temperature

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Massachusetts weather in October

Expect daytime maximum temperatures of 17°C in Massachusetts, USA in October based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 87 mm of rainfall in the month.

17
17°C max day temperature
7
7 hours of sunshine per day
9
9 days with some rainfall
6
6°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
87
87 mm of monthly rainfall
4
4 (Moderate) UV index
13
13°C sea temperature

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Massachusetts weather in November

Expect daytime maximum temperatures of 11°C 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 111 mm of rainfall in the month.

11
11°C max day temperature
5
5 hours of sunshine per day
11
11 days with some rainfall
2
2°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
111
111 mm of monthly rainfall
2
2 (Low) UV index
9
9°C sea temperature

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Massachusetts weather in December

Expect daytime maximum temperatures of 4°C 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 105 mm of rainfall in the month, which might fall as snow.

4
4°C max day temperature
5
5 hours of sunshine per day
12
12 days with some rainfall
-5
-5°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
105
105 mm of monthly rainfall
1
1 (Low) UV index
7
7°C sea temperature

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