Diablo Grande Weather in April
Average highs run from 76°F on April 1 to 84°F on April 30, and lows from 45°F to 49°F. Normal precipitation for the month is 0.71 in over about 4 wet days.
April day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
April at a glance
- Average high
- 80°F
- Average low
- 46°F
- Precipitation
- 0.71 in
- Record high
- 95°FApr 22, 2009
- Record low
- 29°FApr 5, 2009
- Chance of a freeze
- 23%
- Days of 90°F or more
- 2.9
- Daylight
- 12 h 38 min to 13 h 43 min
- Cloud cover
- 42%
- Humidity
- 71%
- Dew point
- 45°F
- Wind
- 8.5 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Apr 1 | 76°F | 45°F | 87°F 1966 | 32°F 1967 | 19% |
| Apr 2 | 76°F | 45°F | 90°F 1966 | 34°F 1963 | 19% |
| Apr 3 | 76°F | 45°F | 86°F 1961 | 31°F 2025 | 19% |
| Apr 4 | 77°F | 45°F | 90°F 1961 | 33°F 2009 | 18% |
| Apr 5 | 77°F | 45°F | 87°F 1960 | 29°F 2009 | 18% |
| Apr 6 | 77°F | 45°F | 91°F 1989 | 32°F 2012 | 18% |
| Apr 7 | 77°F | 45°F | 91°F 1989 | 33°F 1982 | 18% |
| Apr 8 | 78°F | 45°F | 91°F 1989 | 33°F 2011 | 17% |
| Apr 9 | 78°F | 45°F | 93°F 1989 | 31°F 1953 | 17% |
| Apr 10 | 78°F | 45°F | 91°F 2022 | 32°F 2017 | 17% |
| Apr 11 | 78°F | 45°F | 92°F 1988 | 32°F 1981 | 17% |
| Apr 12 | 79°F | 46°F | 86°F 1961 | 33°F 1999 | 16% |
| Apr 13 | 79°F | 46°F | 88°F 1962 | 35°F 1970 | 16% |
| Apr 14 | 79°F | 46°F | 90°F 1962 | 33°F 2001 | 16% |
| Apr 15 | 79°F | 46°F | 90°F 1987 | 35°F 1970 | 15% |
| Apr 16 | 80°F | 46°F | 92°F 1964 | 34°F 1967 | 15% |
| Apr 17 | 80°F | 46°F | 92°F 1954 | 35°F 1995 | 15% |
| Apr 18 | 80°F | 47°F | 92°F 1954 | 32°F 2026 | 14% |
| Apr 19 | 81°F | 47°F | 92°F 1954 | 33°F 1955 | 14% |
| Apr 20 | 81°F | 47°F | 90°F 1950 | 37°F 1955 | 14% |
| Apr 21 | 81°F | 47°F | 92°F 2009 | 38°F 1963 | 13% |
| Apr 22 | 82°F | 47°F | 95°F 2009 | 37°F 1967 | 13% |
| Apr 23 | 82°F | 47°F | 95°F 2009 | 37°F 1970 | 13% |
| Apr 24 | 82°F | 48°F | 90°F 1981 | 33°F 1964 | 13% |
| Apr 25 | 83°F | 48°F | 91°F 2019 | 36°F 1964 | 12% |
| Apr 26 | 83°F | 48°F | 93°F 2019 | 30°F 2014 | 12% |
| Apr 27 | 83°F | 48°F | 94°F 2004 | 37°F 1955 | 12% |
| Apr 28 | 83°F | 48°F | 95°F 2004 | 35°F 1970 | 12% |
| Apr 29 | 84°F | 49°F | 93°F 2007 | 37°F 1952 | 12% |
| Apr 30 | 84°F | 49°F | 94°F 1981 | 35°F 1990 | 11% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- April 1
- sunrise 6:50 AM, sunset 7:28 PM
- April 30
- sunrise 6:11 AM, sunset 7:54 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00046168 (Newman), public domain. Records: NOAA GHCN-Daily, station USC00048999, 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.