St. George Average Temperature by Month

This page shows the average temperature in each month of the year in St. George, Utah. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in St. George?
In St. George, Utah, the warmest month is July, with an average daily high temperature of 102.5 °F and an average low of 73.0 °F.
What's the Coldest Month in St. George?
In St. George, Utah, the coolest month is January, with an average daily high temperature of 54.9 °F and an average low of 30.8 °F.
Month Avg. High Avg. Low
January 54.9 °F 30.8 °F
February 60.3 °F 34.7 °F
March 69.7 °F 41.3 °F
April 76.5 °F 47.4 °F
May 86.3 °F 57.0 °F
June 97.6 °F 66.1 °F
July 102.5 °F 73.0 °F
August 101.1 °F 71.9 °F
September 93.4 °F 62.8 °F
October 80.0 °F 49.2 °F
November 64.9 °F 37.1 °F
December 53.8 °F 30.1 °F
Year 78.4 °F 50.1 °F
Weather Station Details
Years Station Coordinates
1893–2024 St. George location
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