Hardin Average Temperature by Month

This page shows the average temperature in each month of the year in Hardin, Montana. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Hardin?
In Hardin, Montana, the warmest month is July, with an average daily high temperature of 91.3 °F and an average low of 56.8 °F.
What's the Coldest Month in Hardin?
In Hardin, Montana, the coolest month is January, with an average daily high temperature of 37.2 °F and an average low of 12.5 °F.
Month Avg. High Avg. Low
January 37.2 °F 12.5 °F
February 41.4 °F 15.7 °F
March 53.6 °F 24.2 °F
April 63.0 °F 33.1 °F
May 72.3 °F 42.4 °F
June 82.0 °F 51.2 °F
July 91.3 °F 56.8 °F
August 90.2 °F 54.5 °F
September 79.4 °F 45.2 °F
October 64.1 °F 33.7 °F
November 49.8 °F 22.9 °F
December 38.6 °F 13.8 °F
Year 63.4 °F 33.7 °F
Weather Station Details
Years Station Coordinates
1948–2024 Hardin location
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