Earliest and Latest Days at or Below 32° F in San Luis Obispo

This is a list of the earliest and latest days in a winter season where the low temperature fell to at least 32 °F in San Luis Obispo, California history. It is based on NOAA data from the years 1893–2024.

Earliest freezing temperature in San Luis Obispo?

The earliest in a winter season that San Luis Obispo, California has recorded a low temperature of 32 °F or below is October 27 which happened in 1929.

Latest freezing temperature in San Luis Obispo?

The latest in a winter season that San Luis Obispo, California has recorded a low temperature of 32 °F or below is May 29 which happened in 1987.

Earliest Days ≤ 32 °F

Date	Year	Temperature
October 27	1929	31 °F
October 28	1971	30 °F
November 7	1986	30 °F
November 11	2000	29 °F
November 13	2000	28 °F
November 13	1985	32 °F
November 13	1982	31 °F
November 16	1998	30 °F
November 16	1964	32 °F
November 18	1988	31 °F
November 19	2000	30 °F
November 20	2009	32 °F
November 20	2000	29 °F
November 20	1964	31 °F
November 20	1929	32 °F
November 21	1987	30 °F
November 21	1979	32 °F
November 21	1964	32 °F
November 21	1929	31 °F
November 22	2004	32 °F

Latest Days ≤ 32 °F

Date	Year	Temperature
May 29	1987	32 °F
April 26	1975	29 °F
April 20	1972	31 °F
April 14	1970	32 °F
April 9	1984	31 °F
April 8	2001	32 °F
April 6	1929	30 °F
April 4	1999	30 °F
April 2	1999	32 °F
March 25	1988	30 °F
March 25	1936	31 °F
March 24	1935	32 °F
March 23	1982	31 °F
March 22	1982	32 °F
March 18	1986	28 °F
March 16	2002	32 °F
March 15	2002	32 °F
March 13	2006	32 °F
March 8	2012	32 °F
March 8	1971	31 °F