Dayton Average Temperature by Month

This page shows the average temperature in each month of the year in Dayton, Tennessee. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Dayton?
In Dayton, Tennessee, the warmest month is July, with an average daily high temperature of 87.6 °F and an average low of 67.6 °F.
What's the Coldest Month in Dayton?
In Dayton, Tennessee, the coolest month is January, with an average daily high temperature of 47.3 °F and an average low of 29.2 °F.
Month Avg. High Avg. Low
January 47.3 °F 29.2 °F
February 52.4 °F 32.6 °F
March 61.0 °F 38.7 °F
April 71.0 °F 46.9 °F
May 78.1 °F 56.0 °F
June 84.8 °F 63.8 °F
July 87.6 °F 67.6 °F
August 87.4 °F 66.8 °F
September 81.6 °F 60.1 °F
October 70.6 °F 47.8 °F
November 59.7 °F 37.6 °F
December 50.4 °F 32.8 °F
Year 69.3 °F 48.4 °F
Weather Station Details
Years Station Coordinates
1956–2024 Dayton 2SE location
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