Chatham weather by month

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

Temperature in Chatham (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
37°F maximum daytime temperature in January in Chatham37
37°F maximum daytime temperature in February in Chatham37
43°F maximum daytime temperature in March in Chatham43
52°F maximum daytime temperature in April in Chatham52
61°F maximum daytime temperature in May in Chatham61
70°F maximum daytime temperature in June in Chatham70
77°F maximum daytime temperature in July in Chatham77
75°F maximum daytime temperature in August in Chatham75
70°F maximum daytime temperature in September in Chatham70
61°F maximum daytime temperature in October in Chatham61
52°F maximum daytime temperature in November in Chatham52
43°F maximum daytime temperature in December in Chatham43
Min temperature (night-time)
23°F minimum night-time temperature in January in Chatham23
23°F minimum night-time temperature in February in Chatham23
32°F minimum night-time temperature in March in Chatham32
37°F minimum night-time temperature in April in Chatham37
46°F minimum night-time temperature in May in Chatham46
57°F minimum night-time temperature in June in Chatham57
63°F minimum night-time temperature in July in Chatham63
63°F minimum night-time temperature in August in Chatham63
57°F minimum night-time temperature in September in Chatham57
48°F minimum night-time temperature in October in Chatham48
39°F minimum night-time temperature in November in Chatham39
28°F minimum night-time temperature in December in Chatham28
Heat & Humidity
No heat & humidity in January in Chatham0
No heat & humidity in February in Chatham0
No heat & humidity in March in Chatham0
No heat & humidity in April in Chatham0
No heat & humidity in May in Chatham0
No heat & humidity in June in Chatham0
No heat & humidity in July in Chatham0
No heat & humidity in August in Chatham0
No heat & humidity in September in Chatham0
No heat & humidity in October in Chatham0
No heat & humidity in November in Chatham0
No heat & humidity in December in Chatham0
Sea temperature
41°F sea temperature in January in Chatham41
39°F sea temperature in February in Chatham39
39°F sea temperature in March in Chatham39
41°F sea temperature in April in Chatham41
48°F sea temperature in May in Chatham48
55°F sea temperature in June in Chatham55
64°F sea temperature in July in Chatham64
66°F sea temperature in August in Chatham66
63°F sea temperature in September in Chatham63
55°F sea temperature in October in Chatham55
50°F sea temperature in November in Chatham50
45°F sea temperature in December in Chatham45

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Chatham

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in Chatham10
11 hours of daylight per day in February in Chatham11
12 hours of daylight per day in March in Chatham12
13 hours of daylight per day in April in Chatham13
15 hours of daylight per day in May in Chatham15
15 hours of daylight per day in June in Chatham15
15 hours of daylight per day in July in Chatham15
14 hours of daylight per day in August in Chatham14
12 hours of daylight per day in September in Chatham12
11 hours of daylight per day in October in Chatham11
10 hours of daylight per day in November in Chatham10
9 hours of daylight per day in December in Chatham9
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Chatham1
UV (maximum) index 2 (Low) in February in Chatham2
UV (maximum) index 4 (Moderate) in March in Chatham4
UV (maximum) index 6 (High) in April in Chatham6
UV (maximum) index 7 (High) in May in Chatham7
UV (maximum) index 8 (Very High) in June in Chatham8
UV (maximum) index 8 (Very High) in July in Chatham8
UV (maximum) index 8 (Very High) in August in Chatham8
UV (maximum) index 6 (High) in September in Chatham6
UV (maximum) index 4 (Moderate) in October in Chatham4
UV (maximum) index 2 (Low) in November in Chatham2
UV (maximum) index 1 (Low) in December in Chatham1

Rainfall in Chatham

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
12 days with some rainfall in January in Chatham12
11 days with some rainfall in February in Chatham11
12 days with some rainfall in March in Chatham12
11 days with some rainfall in April in Chatham11
11 days with some rainfall in May in Chatham11
11 days with some rainfall in June in Chatham11
9 days with some rainfall in July in Chatham9
10 days with some rainfall in August in Chatham10
8 days with some rainfall in September in Chatham8
9 days with some rainfall in October in Chatham9
11 days with some rainfall in November in Chatham11
13 days with some rainfall in December in Chatham13
Average monthly rainfall (inches)
4.1 inches monthly rainfall in January in Chatham4.1
3.5 inches monthly rainfall in February in Chatham3.5
4.0 inches monthly rainfall in March in Chatham4.0
3.7 inches monthly rainfall in April in Chatham3.7
3.2 inches monthly rainfall in May in Chatham3.2
2.6 inches monthly rainfall in June in Chatham2.6
2.5 inches monthly rainfall in July in Chatham2.5
3.5 inches monthly rainfall in August in Chatham3.5
3.3 inches monthly rainfall in September in Chatham3.3
3.5 inches monthly rainfall in October in Chatham3.5
4.4 inches monthly rainfall in November in Chatham4.4
4.5 inches monthly rainfall in December in Chatham4.5

More about Chatham

Chatham by month

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

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The climate guide for Massachusetts (Chatham) 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 Chatham?

Chatham has a cold climate with warm summers and some rainfall in all months.

Metric (°C)  |  Imperial (°F)

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Tropical storm risk: Chatham, Massachusetts hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
0
1.6%
2.2%
0
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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More about the USA

Compare Chatham with the USA

Below the Chatham chart shows average maximum daytime temperature for Chatham, Massachusetts, USA and the USA (Washington).

Maximum daytime temperature (°F)

Chatham, Massachusetts, USA
USA (Washington)
37
41
37
45
43
55
52
66
61
75
70
84
77
88
75
86
70
79
61
68
52
57
43
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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