San Luis Obispo April Weather

Averages and records for weather in San Luis Obispo, California in the month of April.
Typical San Luis Obispo April Weather
1991–2020
Average daily high 69.7 °F
Average daily low 46.1 °F
Average monthly precipitation 1.2 inches
Daily chance of precipitation 17.2%
San Luis Obispo April Weather Records
1893–2024
Highest temperature 104 °F April 8, 1989
Lowest temperature 29 °F April 26, 1975
Highest daily low 69 °F April 18, 1938
Lowest daily high 50 °F April 2, 1967
Hottest average high temperature 76.6 °F 1992
Coldest average high temperature 57.6 °F 1967
Most daily precipitation 3.1 inches April 11, 1982
Most monthly precipitation 6.9 inches 1967
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
April 1 67.7 45.2 91 35
April 2 67.8 45.2 92 32
April 3 67.9 45.2 90 33
April 4 68.0 45.2 94 30
April 5 68.1 45.1 90 36
April 6 68.3 45.2 98 30
April 7 68.5 45.3 100 34
April 8 68.6 45.4 104 32
April 9 68.7 45.5 98 31
April 10 68.9 45.5 85 34
April 11 69.1 45.6 90 34
April 12 69.2 45.7 93 34
April 13 69.4 45.9 95 33
April 14 69.5 45.9 95 32
April 15 69.6 46.0 94 36
April 16 69.8 46.1 94 35
April 17 70.1 46.3 89 34
April 18 70.3 46.4 89 33
April 19 70.5 46.5 96 33
April 20 70.7 46.6 101 31
April 21 70.8 46.8 97 34
April 22 70.9 46.9 91 34
April 23 71.1 47.0 95 35
April 24 71.2 47.1 89 38
April 25 71.3 47.2 90 37
April 26 71.3 47.3 100 29
April 27 71.4 47.3 99 33
April 28 71.6 47.4 91 33
April 29 71.7 47.5 96 35
April 30 71.8 47.6 97 36
Weather Station Details
Years Station Coordinates
1999–2024 San Luis Obispo Airport location
1893–1998 San Luis Obispo Poly location