Santa Rosa Weather in April
Average highs run from 26°C on April 1 to on April 30, and lows from 12°C to 7°C. Normal precipitation for the month is 66 mm over about 6 wet days.
April day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
April at a glance
- Average high
- 23°C
- Average low
- 9°C
- Precipitation
- 66 mm
- Record high
- 37°CApr 5, 1951
- Record low
- -7°CApr 29, 1989
- Daylight
- 11 h 40 min to 10 h 38 min
- Cloud cover
- 49%
- Humidity
- 67%
- Dew point
- 8°C
- Wind
- 7.9 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Apr 1 | 26°C | 12°C | 34°C 2010 | 0°C 1955 | 25% |
| Apr 2 | 24°C | 12°C | 33°C 1965 | 1°C 1951 | 25% |
| Apr 3 | 24°C | 11°C | 32°C 2015 | 0°C 1959 | 24% |
| Apr 4 | 24°C | 11°C | 35°C 1965 | -2°C 1968 | 24% |
| Apr 5 | 24°C | 11°C | 37°C 1951 | 0°C 1954 | 23% |
| Apr 6 | 24°C | 11°C | 34°C 1965 | 0°C 1999 | 24% |
| Apr 7 | 24°C | 10°C | 32°C 2022 | -1°C 1973 | 24% |
| Apr 8 | 24°C | 9°C | 34°C 2019 | 0°C 1988 | 22% |
| Apr 9 | 10°C | 33°C 1990 | 1°C 1961 | 21% | |
| Apr 10 | 25°C | 11°C | 32°C 1982 | 1°C 1977 | 21% |
| Apr 11 | 24°C | 11°C | 32°C 2009 | -2°C 1956 | 20% |
| Apr 12 | 24°C | 9°C | 32°C 1974 | -3°C 1958 | 18% |
| Apr 13 | 25°C | 11°C | 36°C 2009 | 0°C 1958 | 17% |
| Apr 14 | 23°C | 10°C | 31°C 1997 | -3°C 2008 | 16% |
| Apr 15 | 9°C | 31°C 1994 | -2°C 2008 | 15% | |
| Apr 16 | 23°C | 10°C | 30°C 1970 | -3°C 1999 | 16% |
| Apr 17 | 23°C | 10°C | 34°C 2009 | 0°C 1955 | 16% |
| Apr 18 | 23°C | 9°C | 30°C 2019 | -1°C 1971 | 16% |
| Apr 19 | 24°C | 8°C | 32°C 2007 | -2°C 1974 | 16% |
| Apr 20 | 23°C | 8°C | 31°C 2008 | -2°C 1968 | 17% |
| Apr 21 | 22°C | 7°C | 32°C 2018 | -4°C 1971 | 16% |
| Apr 22 | 22°C | 8°C | 31°C 2018 | -1°C 1953 | 16% |
| Apr 23 | 23°C | 8°C | 32°C 2000 | -4°C 1952 | 16% |
| Apr 24 | 22°C | 8°C | 30°C 2000 | -4°C 1964 | 15% |
| Apr 25 | 22°C | 8°C | 30°C 2008 | -2°C 2005 | 15% |
| Apr 26 | 21°C | 7°C | 29°C 1977 | -3°C 1962 | 15% |
| Apr 27 | 21°C | 8°C | 30°C 1977 | -3°C 1965 | 15% |
| Apr 28 | 21°C | 8°C | 31°C 2011 | -2°C 1968 | 16% |
| Apr 29 | 21°C | 8°C | 33°C 2009 | -7°C 1989 | 17% |
| Apr 30 | 7°C | 29°C 2009 | -3°C 1985 | 17% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- April 1
- sunrise 7:31 AM, sunset 7:11 PM
- April 30
- sunrise 7:55 AM, sunset 6:33 PM
Other months
Sources
Records: NOAA GHCN-Daily, station AR000087623, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.