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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
More
Weather Station Details
Years Station Coordinates
1927–2022 San Luis Obispo Poly location