Chatham climate guide

Temperature in Chatham (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
3°C maximum daytime temperature in January in Chatham3
3°C maximum daytime temperature in February in Chatham3
6°C maximum daytime temperature in March in Chatham6
11°C maximum daytime temperature in April in Chatham11
16°C maximum daytime temperature in May in Chatham16
21°C maximum daytime temperature in June in Chatham21
25°C maximum daytime temperature in July in Chatham25
24°C maximum daytime temperature in August in Chatham24
21°C maximum daytime temperature in September in Chatham21
16°C maximum daytime temperature in October in Chatham16
11°C maximum daytime temperature in November in Chatham11
6°C maximum daytime temperature in December in Chatham6
Min temperature (night-time)
-5°C minimum night-time temperature in January in Chatham-5
-5°C minimum night-time temperature in February in Chatham-5
0°C minimum night-time temperature in March in Chatham0
3°C minimum night-time temperature in April in Chatham3
8°C minimum night-time temperature in May in Chatham8
14°C minimum night-time temperature in June in Chatham14
17°C minimum night-time temperature in July in Chatham17
17°C minimum night-time temperature in August in Chatham17
14°C minimum night-time temperature in September in Chatham14
9°C minimum night-time temperature in October in Chatham9
4°C minimum night-time temperature in November in Chatham4
-2°C minimum night-time temperature in December in Chatham-2
Sea temperature
5°C sea temperature in January in Chatham5
4°C sea temperature in February in Chatham4
4°C sea temperature in March in Chatham4
5°C sea temperature in April in Chatham5
9°C sea temperature in May in Chatham9
13°C sea temperature in June in Chatham13
18°C sea temperature in July in Chatham18
19°C sea temperature in August in Chatham19
17°C sea temperature in September in Chatham17
13°C sea temperature in October in Chatham13
10°C sea temperature in November in Chatham10
7°C sea temperature in December in Chatham7

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

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 (mm)
103 mm monthly rainfall in January in Chatham103
90 mm monthly rainfall in February in Chatham90
101 mm monthly rainfall in March in Chatham101
93 mm monthly rainfall in April in Chatham93
81 mm monthly rainfall in May in Chatham81
67 mm monthly rainfall in June in Chatham67
64 mm monthly rainfall in July in Chatham64
90 mm monthly rainfall in August in Chatham90
84 mm monthly rainfall in September in Chatham84
89 mm monthly rainfall in October in Chatham89
111 mm monthly rainfall in November in Chatham111
114 mm monthly rainfall in December in Chatham114

More climate for Chatham

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

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

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More about Chatham

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

The climate guide for Chatham, Massachusetts 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.

Metric (°C / mm)  |  Imperial (°F / inches)

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