Fairmont Average Temperature by Month

This page shows the average temperature in each month of the year in Fairmont, West Virginia. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Fairmont?
In Fairmont, West Virginia, the warmest month is July, with an average daily high temperature of 83.4 °F and an average low of 62.9 °F.
What's the Coldest Month in Fairmont?
In Fairmont, West Virginia, the coolest month is January, with an average daily high temperature of 39.1 °F and an average low of 22.9 °F.
Month Avg. High Avg. Low
January 39.1 °F 22.9 °F
February 42.8 °F 24.8 °F
March 51.7 °F 31.2 °F
April 65.0 °F 41.3 °F
May 73.1 °F 50.5 °F
June 79.8 °F 59.1 °F
July 83.4 °F 62.9 °F
August 82.3 °F 61.5 °F
September 76.9 °F 54.8 °F
October 65.1 °F 43.3 °F
November 53.7 °F 34.8 °F
December 43.3 °F 28.0 °F
Year 63.1 °F 43.0 °F
Weather Station Details
Years Station Coordinates
1892–2024 Fairmont location
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