Connecticut weather by month

Check out Connecticut 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°C maximum daytime temperature in January in Hartford1
2°C maximum daytime temperature in February in Hartford2
8°C maximum daytime temperature in March in Hartford8
15°C maximum daytime temperature in April in Hartford15
21°C maximum daytime temperature in May in Hartford21
26°C maximum daytime temperature in June in Hartford26
28°C maximum daytime temperature in July in Hartford28
28°C maximum daytime temperature in August in Hartford28
23°C maximum daytime temperature in September in Hartford23
18°C maximum daytime temperature in October in Hartford18
11°C maximum daytime temperature in November in Hartford11
3°C maximum daytime temperature in December in Hartford3
Hours of sunshine (daily)
Days with some rainfall
11 days with some rainfall in January in Hartford11
10 days with some rainfall in February in Hartford10
11 days with some rainfall in March in Hartford11
11 days with some rainfall in April in Hartford11
12 days with some rainfall in May in Hartford12
11 days with some rainfall in June in Hartford11
9 days with some rainfall in July in Hartford9
10 days with some rainfall in August in Hartford10
9 days with some rainfall in September in Hartford9
8 days with some rainfall in October in Hartford8
11 days with some rainfall in November in Hartford11
12 days with some rainfall in December in Hartford12

More about Connecticut

Connecticut by month

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

Recommended for Connecticut

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The climate guide for Connecticut (Hartford) 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 Connecticut destinations

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

All Connecticut destinations

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

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Tropical storm risk: Connecticut hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
0
1.2%
1.3%
0
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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More about the USA

Compare Connecticut with the UK

Below the Connecticut chart shows average maximum daytime temperature for Connecticut, USA (Hartford) and the UK (London).

Maximum daytime temperature (°C)

Connecticut, USA (Hartford)
UK (London)
1
7
2
7
8
10
15
13
21
17
26
20
28
22
28
22
23
19
18
15
11
10
3
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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