Average Annual Temperatures in Connecticut

Average annual temperatures for cities and towns throughout Connecticut are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for places in Coastal Connecticut and Inland Connecticut.

The tables give the normals for maximum and minimum yearly temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Coastal Connecticut

Average annual temperatures
High °F Low °F Place High °C Low °C
61 46 Bridgeport 16 8
60 45 Groton 16 7
61 44 New Haven 16 6
59 44 New London 15 6
61 42 Norwich 16 6
62 43 Stamford 17 6

Inland Connecticut

Average temperatures for the year
High °F Low °F Place High °C Low °C
61 39 Burlington 16 4
61 42 Danbury 16 6
61 41 Hartford 16 5
55 37 Norfolk 13 3
58 36 Staffordville 14 2
58 36 Torrington 15 2
59 37 West Thompson Lake 15 3
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Connecticut Temperatures
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