Colusa Average Temperature by Month

This page shows the average temperature in each month of the year in Colusa, California. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Colusa?
In Colusa, California, the warmest month is July, with an average daily high temperature of 93.0 °F and an average low of 60.0 °F.
What's the Coldest Month in Colusa?
In Colusa, California, the coolest month is January, with an average daily high temperature of 55.1 °F and an average low of 38.6 °F.
Month Avg. High Avg. Low
January 55.1 °F 38.6 °F
February 60.6 °F 41.8 °F
March 66.9 °F 44.2 °F
April 73.8 °F 46.6 °F
May 81.7 °F 53.8 °F
June 88.6 °F 58.6 °F
July 93.0 °F 60.0 °F
August 92.2 °F 58.5 °F
September 89.8 °F 54.9 °F
October 79.7 °F 48.4 °F
November 64.5 °F 42.0 °F
December 55.2 °F 37.9 °F
Year 75.1 °F 48.8 °F
Weather Station Details
Years Station Coordinates
1948–2024 Colusa 2 SSW location
1893–1948 Colusa BRG location