San Luis Obispo March Weather

Averages and records for weather in San Luis Obispo, California in the month of March.
Typical San Luis Obispo March Weather
1991–2020
Average daily high 67.3 °F
Average daily low 45.1 °F
Average monthly precipitation 3.3 inches
Daily chance of precipitation 28.1%
San Luis Obispo March Weather Records
1893–2024
Highest temperature 90 °F March 26, 2015
Lowest temperature 28 °F March 18, 1986
Highest daily low 65 °F March 25, 1930
Lowest daily high 46 °F March 15, 1999
Hottest average high temperature 76.0 °F 2015
Coldest average high temperature 58.9 °F 2006
Most daily precipitation 4.8 inches March 7, 1911
Most monthly precipitation 16.5 inches 1995
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
March 1 65.9 44.1 86 28
March 2 66.0 44.1 84 30
March 3 66.1 44.2 86 30
March 4 66.3 44.2 85 31
March 5 66.4 44.3 84 33
March 6 66.6 44.4 88 34
March 7 66.7 44.5 84 32
March 8 66.7 44.5 86 31
March 9 66.8 44.6 84 33
March 10 66.8 44.6 84 34
March 11 66.8 44.7 89 34
March 12 66.9 44.8 90 35
March 13 66.9 44.9 89 32
March 14 67.1 45.0 90 35
March 15 67.2 45.0 88 32
March 16 67.3 45.0 90 32
March 17 67.5 45.1 85 34
March 18 67.5 45.1 85 28
March 19 67.6 45.1 86 34
March 20 67.6 45.1 87 34
March 21 67.7 45.2 88 35
March 22 67.8 45.2 87 32
March 23 67.8 45.3 82 31
March 24 67.8 45.3 82 32
March 25 67.8 45.3 90 30
March 26 67.7 45.2 90 35
March 27 67.7 45.2 89 36
March 28 67.7 45.2 86 36
March 29 67.7 45.2 85 35
March 30 67.7 45.3 84 36
March 31 67.7 45.3 89 34
Weather Station Details
Years Station Coordinates
1999–2024 San Luis Obispo Airport location
1893–1998 San Luis Obispo Poly location