Norfolk Average Temperature by Month

This page shows the average temperature in each month of the year in Norfolk, Connecticut. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Norfolk?
In Norfolk, Connecticut, the warmest month is July, with an average daily high temperature of 78.7 °F and an average low of 59.5 °F.
What's the Coldest Month in Norfolk?
In Norfolk, Connecticut, the coolest month is January, with an average daily high temperature of 30.0 °F and an average low of 14.0 °F.
Month Avg. High Avg. Low
January 30.0 °F 14.0 °F
February 32.8 °F 15.6 °F
March 40.7 °F 22.8 °F
April 54.5 °F 34.0 °F
May 65.7 °F 45.4 °F
June 73.9 °F 54.6 °F
July 78.7 °F 59.5 °F
August 76.5 °F 58.0 °F
September 69.2 °F 51.0 °F
October 56.6 °F 39.7 °F
November 45.2 °F 30.1 °F
December 34.9 °F 21.4 °F
Year 54.9 °F 37.3 °F
Weather Station Details
Years Station Coordinates
1884–2024 Norfolk 2 Sw location
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