Average Temperatures for Connecticut in September





Average temperatures for September at 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 temperatures based on weather data collected from 1981 to 2010 by the US National Climatic Data Center.

Coastal Connecticut

Average September temperatures
High °F Low °F Place High °C Low °C
74 58 Bridgeport 23 15
74 57 Groton 23 14
74 56 New Haven 24 13
72 55 New London 22 13
75 52 Norwich 24 11
76 54 Stamford 25 12

Inland Connecticut

Average daily temperatures in September
High °F Low °F Place High °C Low °C
74 51 Burlington 23 11
75 53 Danbury 24 12
75 53 Hartford 24 12
74 48 Mansfield Hollow Lake 23 9
74 54 Middletown 23 12
68 50 Norfolk 20 10
73 49 West Thompson Lake 23 9
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

Connecticut Temperatures
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