Highest Daily Low Temperatures in Santa Rosa History

This is a list of the hottest daily low temperatures ever recorded in Santa Rosa, California history from 1902–2024 based on data from the NOAA.

Highest temperatures all-time

Record for the highest daily low temperature in Santa Rosa

The highest low temperature for a calendar day in Santa Rosa, California history was 78 °F which happened on Thursday, June 17, 1993.

Rank	Temperature	Date
1	78 °F	June 17, 1993
2	76 °F	June 20, 1920
3	74 °F	July 15, 1922
4	72 °F	June 19, 1920
5	70 °F	September 18, 1984
5	70 °F	June 19, 1981
7	69 °F	May 19, 1920
8	68 °F	May 15, 2008
8	68 °F	October 8, 1996
8	68 °F	June 20, 1981
11	67 °F	July 23, 1993
11	67 °F	July 22, 1993
11	67 °F	May 3, 1990
11	67 °F	July 17, 1988
11	67 °F	June 25, 1922
16	66 °F	June 25, 1995
16	66 °F	July 15, 1984
16	66 °F	June 24, 1976
16	66 °F	May 13, 1922
20	65 °F	July 15, 1995
20	65 °F	August 2, 1993
20	65 °F	June 24, 1993
20	65 °F	July 9, 1985
20	65 °F	September 9, 1984
20	65 °F	June 12, 1984
20	65 °F	June 22, 1981
20	65 °F	June 21, 1981
20	65 °F	September 2, 1979
20	65 °F	July 13, 1979
20	65 °F	June 26, 1973
20	65 °F	May 22, 1943
20	65 °F	July 29, 1922
20	65 °F	June 18, 1922
20	65 °F	August 28, 1919