Hanover Average Temperature by Month

This page shows the average temperature in each month of the year in Hanover, New Hampshire. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Hanover?
In Hanover, New Hampshire, the warmest month is July, with an average daily high temperature of 82.4 °F and an average low of 60.0 °F.
What's the Coldest Month in Hanover?
In Hanover, New Hampshire, the coolest month is January, with an average daily high temperature of 29.4 °F and an average low of 12.1 °F.
Month Avg. High Avg. Low
January 29.4 °F 12.1 °F
February 33.3 °F 13.5 °F
March 42.7 °F 22.3 °F
April 57.1 °F 33.9 °F
May 69.8 °F 45.2 °F
June 77.8 °F 54.4 °F
July 82.4 °F 60.0 °F
August 80.5 °F 58.3 °F
September 72.6 °F 51.0 °F
October 59.3 °F 39.7 °F
November 46.2 °F 30.2 °F
December 34.4 °F 19.4 °F
Year 57.2 °F 36.8 °F
Weather Station Details
Years Station Coordinates
1884–2024 Hanover location
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