April weather in San Marino, CA
The average temperature in San Marino in April is 63.4°F (50.6°F–76.2°F). Average precipitation: 1.11 inches.
April is a spring month in San Marino, and is cooler than the annual average of 66°F. Daily temperatures swing about 25.6°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 12h 52m. For travel, April is one of the best months of the year to visit.
Avg High
76.2°F
Avg Low
50.6°F
Precipitation
1.11 in
Daylight
12h 52m
April records in San Marino
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 93.0°F (1959) | 33.1°F (1917) | 2.43 in (1958) |
| April 2 | 91.9°F (1985) | 36.0°F (1956) | 0.55 in (1965) |
| April 3 | 99.0°F (1961) | 39.0°F (1913) | 1.16 in (1958) |
| April 4 | 99.0°F (1989) | 35.1°F (1918) | 3.30 in (1929) |
| April 5 | 100.9°F (1989) | 33.1°F (1921) | 3.81 in (1926) |
| April 6 | 105.1°F (1989) | 33.1°F (1921) | 2.30 in (2020) |
| April 7 | 104.0°F (1989) | 35.1°F (1929) | 2.54 in (1926) |
| April 8 | 99.0°F (1989) | 34.0°F (1893) | 2.69 in (1935) |
| April 9 | 95.0°F (2022) | 35.1°F (1935) | 1.08 in (1912) |
| April 10 | 93.9°F (1988) | 33.1°F (1927) | 1.26 in (1965) |
| April 11 | 97.0°F (2018) | 35.1°F (1927) | 0.91 in (1912) |
| April 12 | 95.0°F (1940) | 35.1°F (1927) | 1.63 in (1956) |
| April 13 | 98.1°F (1985) | 34.0°F (1922) | 1.06 in (1956) |
| April 14 | 95.0°F (1964) | 35.1°F (1918) | 0.95 in (2003) |
| April 15 | 97.0°F (1966) | 35.1°F (1921) | 0.41 in (1920) |
| April 16 | 93.0°F (1948) | 35.1°F (1922) | 1.16 in (1995) |
| April 17 | 93.9°F (1999) | 37.0°F (1917) | 1.68 in (2000) |
| April 18 | 95.0°F (1999) | 30.9°F (1917) | 2.12 in (1983) |
| April 19 | 97.0°F (1914) | 34.0°F (1933) | 0.57 in (1952) |
| April 20 | 100.9°F (2009) | 39.0°F (1967) | 2.36 in (1983) |
| April 21 | 98.1°F (2009) | 35.1°F (1932) | 0.69 in (1915) |
| April 22 | 98.1°F (1910) | 36.0°F (1920) | 0.93 in (1955) |
| April 23 | 100.9°F (1910) | 37.0°F (1920) | 0.55 in (1924) |
| April 24 | 99.0°F (1910) | 37.0°F (1921) | 0.68 in (1931) |
| April 25 | 97.0°F (2020) | 37.9°F (1921) | 0.87 in (1951) |
| April 26 | 100.0°F (2004) | 39.0°F (1932) | 2.73 in (1931) |
| April 27 | 99.0°F (2004) | 39.0°F (1932) | 1.50 in (1960) |
| April 28 | 97.0°F (1921) | 37.0°F (1970) | 0.55 in (1906) |
| April 29 | 96.1°F (1996) | 37.9°F (1970) | 1.70 in (1983) |
| April 30 | 96.1°F (1996) | 37.0°F (1933) | 1.49 in (1941) |