April weather in St. Helena, CA
The average temperature in St. Helena in April is 59.0°F (46.3°F–71.8°F). Average precipitation: 1.97 inches.
April is a spring month in St. Helena, and is cooler than the annual average of 61°F. Daily temperatures swing about 25.5°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 13h 1m. For travel, April is a comfortable month to visit.
Avg High
71.8°F
Avg Low
46.3°F
Precipitation
1.97 in
Daylight
13h 1m
April records in St. Helena
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 88.0°F (2017) | 28.0°F (1936) | 3.52 in (1927) |
| April 2 | 91.0°F (1966) | 28.9°F (1976) | 2.49 in (1958) |
| April 3 | 89.1°F (1961) | 30.0°F (1955) | 1.75 in (1936) |
| April 4 | 89.1°F (1960) | 30.0°F (1918) | 3.10 in (1941) |
| April 5 | 90.0°F (1939) | 28.9°F (1932) | 3.40 in (1926) |
| April 6 | 93.0°F (1924) | 28.0°F (1929) | 1.54 in (2018) |
| April 7 | 93.0°F (1989) | 27.0°F (1929) | 1.75 in (1935) |
| April 8 | 96.1°F (1989) | 27.0°F (1953) | 1.82 in (1926) |
| April 9 | 93.9°F (1989) | 28.0°F (1922) | 1.42 in (1965) |
| April 10 | 93.9°F (1908) | 30.0°F (1927) | 3.25 in (1982) |
| April 11 | 90.0°F (1908) | 30.0°F (1911) | 1.42 in (2010) |
| April 12 | 90.0°F (1947) | 30.9°F (1933) | 2.00 in (2003) |
| April 13 | 95.0°F (1985) | 30.0°F (1922) | 1.20 in (2003) |
| April 14 | 93.0°F (1985) | 30.9°F (1921) | 1.49 in (1963) |
| April 15 | 95.0°F (1947) | 28.9°F (1921) | 2.11 in (1935) |
| April 16 | 89.1°F (1931) | 30.9°F (1970) | 0.69 in (2006) |
| April 17 | 91.0°F (1954) | 28.9°F (1933) | 1.07 in (2000) |
| April 18 | 90.0°F (1938) | 30.0°F (1922) | 1.07 in (1988) |
| April 19 | 96.1°F (1916) | 30.9°F (1961) | 0.70 in (1988) |
| April 20 | 96.1°F (1931) | 30.9°F (1967) | 1.42 in (1955) |
| April 21 | 93.0°F (1931) | 30.9°F (1963) | 0.80 in (1955) |
| April 22 | 90.0°F (1910) | 30.9°F (1960) | 1.21 in (1961) |
| April 23 | 93.9°F (1946) | 30.9°F (1970) | 0.87 in (1983) |
| April 24 | 93.0°F (1927) | 30.0°F (1964) | 1.53 in (1998) |
| April 25 | 95.0°F (1926) | 30.9°F (1944) | 1.18 in (1940) |
| April 26 | 95.0°F (1926) | 34.0°F (1932) | 0.79 in (1956) |
| April 27 | 91.9°F (1921) | 30.0°F (1955) | 2.77 in (1953) |
| April 28 | 96.1°F (1921) | 30.9°F (1967) | 1.43 in (1951) |
| April 29 | 98.1°F (1981) | 32.0°F (1948) | 1.14 in (1948) |
| April 30 | 93.9°F (1996) | 30.9°F (1933) | 0.50 in (1942) |