Spirit Lake Average Temperature by Month

This page shows the average temperature in each month of the year in Spirit Lake, Iowa. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Spirit Lake?
In Spirit Lake, Iowa, the warmest month is July, with an average daily high temperature of 83.6 °F and an average low of 63.9 °F.
What's the Coldest Month in Spirit Lake?
In Spirit Lake, Iowa, the coolest month is January, with an average daily high temperature of 24.8 °F and an average low of 9.0 °F.
Month Avg. High Avg. Low
January 24.8 °F 9.0 °F
February 28.3 °F 10.7 °F
March 42.2 °F 24.5 °F
April 56.7 °F 36.7 °F
May 68.9 °F 49.1 °F
June 78.9 °F 59.6 °F
July 83.6 °F 63.9 °F
August 80.2 °F 61.2 °F
September 74.2 °F 53.6 °F
October 58.9 °F 39.6 °F
November 44.4 °F 26.6 °F
December 29.5 °F 14.5 °F
Year 56.0 °F 37.6 °F
Weather Station Details
Years Station Coordinates
1893–2024 Spirit Lake location
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