San Luis Obispo Weather Records

San Luis Obispo, California weather data and records from 1927–2022 based on data compiled by the NOAA.

All data displayed in U.S. customary units.

All data displayed in metric units.

All-Time Recorded High

The highest temperature ever recorded in San Luis Obispo, California was 113.0 °F45.0 °C which occurred on September 6, 2020.

Highest Temperatures: All-Time By Year

All-Time Recorded Low

The lowest temperature ever recorded in San Luis Obispo, California was 17.1 °F-8.3 °C which occurred on December 23, 1990.

Lowest Temperatures: All-Time By Year

San Luis Obispo Weather by Month

Averages based on the years 1991–2020

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
☀️ Average high (°F°C)	65.818.8	65.618.7	68.120.1	70.321.3	72.722.6	76.424.7	78.926.1	80.627.0	81.227.3	78.525.8	71.321.8	64.918.3	73.022.8
🌙 Average low (°F°C)	43.86.6	44.57.0	46.17.8	46.88.2	49.29.5	51.610.9	53.912.2	54.512.5	53.512.0	51.410.8	46.98.3	43.56.4	48.79.3
☀️ Record high (°F°C)	90.032.2	89.131.7	91.933.3	104.040.0	102.038.9	108.042.2	111.043.9	107.141.7	113.045.0	109.042.8	98.136.7	91.933.3	113.045.0
🌙 Record low (°F°C)	24.1-4.4	21.0-6.1	28.0-2.2	28.9-1.7	32.00.0	35.11.7	36.02.2	39.94.4	35.11.7	30.0-1.1	23.0-5.0	17.1-8.3	17.1-8.3
💧 Average precipitation (inchescm)	4.812.1	4.912.4	3.79.3	1.33.3	0.51.3	0.10.4	0.10.2	0.00.0	0.10.3	0.82.1	2.05.1	3.59.0	22.456.9
💧 Daily % chance precipitation	27.9	34.0	27.8	13.9	7.5	2.2	1.6	0.7	2.5	10.5	14.8	27.1	14.2
❄️ Average snow (inchescm)	0.00.0	0.00.0	0.00.0	0.00.0	0.00.0	0.00.0	0.00.0	0.00.0	0.00.0	0.00.0	0.00.0	0.00.0	0.00.0

More San Luis Obispo Weather Records 1927–2022
Highest daily low	75.0 °F23.9 °C	September 22, 1939
Lowest daily high	39.9 °F4.4 °C	December 11, 1932
Most daily precipitation	5.9 inches15.0 cm	January 25, 1969
Most monthly precipitation	24.6 inches62.6 cm	January 1969
Most yearly precipitation	49.9 inches126.8 cm	1983
Earliest freeze	October 27	1929
Latest freeze	April 26	1975
Most daily snow	none	-

San Luis Obispo Weather Streaks Most consecutive days...
With precipitation	22 days	Feb 14 – Mar 7, 2011
Without precipitation	215 days	Apr 13 – Nov 13, 1965
High temperature ≥ 80 °F27 °C	26 days	Aug 23 – Sep 17, 1998
High temperature ≥ 90 °F32 °C	9 days	Oct 21–29, 1965
High temperature ≥ 100 °F38 °C	5 days	Sep 24–28, 1978

San Luis Obispo Weather by Year

Weather Station Details

Years	Station	Coordinates
1927–2022	San Luis Obispo Poly	location