Diablo Grande Weather in March
Average highs run from 70°F on March 1 to 76°F on March 31, and lows from 43°F to 44°F. Normal precipitation for the month is 1.76 in over about 8 wet days.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 73°F
- Average low
- 44°F
- Precipitation
- 1.76 in
- Record high
- 92°FMar 24, 2026
- Record low
- 24°FMar 1, 2021
- Chance of a freeze
- 31%
- Daylight
- 11 h 23 min to 12 h 35 min
- Cloud cover
- 49%
- Humidity
- 79%
- Dew point
- 44°F
- Wind
- 7.2 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 |
|---|---|---|---|---|---|
| Mar 1 | 70°F | 43°F | 81°F 2026 | 24°F 2021 | 31% |
| Mar 2 | 71°F | 43°F | 77°F 2016 | 31°F 1953 | 30% |
| Mar 3 | 71°F | 43°F | 79°F 1968 | 30°F 1951 | 30% |
| Mar 4 | 71°F | 43°F | 75°F 2016 | 28°F 1966 | 30% |
| Mar 5 | 71°F | 43°F | 80°F 2020 | 32°F 1967 | 29% |
| Mar 6 | 71°F | 43°F | 81°F 1972 | 31°F 1956 | 29% |
| Mar 7 | 72°F | 43°F | 84°F 1972 | 33°F 1997 | 28% |
| Mar 8 | 72°F | 43°F | 82°F 1972 | 33°F 1956 | 28% |
| Mar 9 | 72°F | 43°F | 81°F 1953 | 28°F 2025 | 27% |
| Mar 10 | 72°F | 43°F | 78°F 2015 | 30°F 1999 | 27% |
| Mar 11 | 72°F | 43°F | 79°F 1997 | 31°F 2002 | 27% |
| Mar 12 | 72°F | 43°F | 77°F 1997 | 32°F 1999 | 26% |
| Mar 13 | 73°F | 44°F | 80°F 1994 | 32°F 1956 | 26% |
| Mar 14 | 73°F | 44°F | 83°F 2007 | 31°F 1953 | 25% |
| Mar 15 | 73°F | 44°F | 84°F 2015 | 34°F 1954 | 25% |
| Mar 16 | 73°F | 44°F | 83°F 2017 | 33°F 1969 | 25% |
| Mar 17 | 73°F | 44°F | 86°F 1972 | 32°F 1955 | 24% |
| Mar 18 | 73°F | 44°F | 89°F 2026 | 32°F 1954 | 24% |
| Mar 19 | 74°F | 44°F | 90°F 2026 | 29°F 2025 | 24% |
| Mar 20 | 74°F | 44°F | 90°F 2026 | 33°F 1952 | 23% |
| Mar 21 | 74°F | 44°F | 89°F 2026 | 35°F 1952 | 23% |
| Mar 22 | 74°F | 44°F | 85°F 2026 | 33°F 2006 | 23% |
| Mar 23 | 74°F | 44°F | 90°F 2026 | 34°F 1994 | 23% |
| Mar 24 | 74°F | 44°F | 92°F 2026 | 29°F 1987 | 22% |
| Mar 25 | 75°F | 44°F | 91°F 2026 | 30°F 1996 | 22% |
| Mar 26 | 75°F | 44°F | 89°F 1988 | 36°F 1964 | 21% |
| Mar 27 | 75°F | 44°F | 88°F 2026 | 33°F 2023 | 21% |
| Mar 28 | 75°F | 44°F | 85°F 2015 | 33°F 1975 | 21% |
| Mar 29 | 75°F | 44°F | 84°F 1968 | 34°F 1999 | 20% |
| Mar 30 | 75°F | 44°F | 86°F 1968 | 33°F 1998 | 20% |
| Mar 31 | 76°F | 44°F | 85°F 1968 | 34°F 1977 | 20% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- March 1
- sunrise 6:36 AM, sunset 5:59 PM
- March 31
- sunrise 6:52 AM, sunset 7:27 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.