Rancho Penasquitos Weather in May
Average highs run from 71°F on May 1 to 73°F on May 31, and lows from 53°F to 57°F. Normal precipitation for the month is 0.38 in.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 72°F
- Average low
- 55°F
- Precipitation
- 0.38 in
- Record high
- 101°FMay 6, 1990
- Record low
- 41°FMay 6, 2024
- Chance of a freeze
- 0%
- Days of 90°F or more
- 1.4
- Daylight
- 13 h 30 min to 14 h 11 min
- Cloud cover
- 29%
- Humidity
- 63%
- Dew point
- 47°F
- Wind
- 8.3 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 |
|---|---|---|---|---|---|
| May 1 | 71°F | 53°F | 95°F 2014 | 42°F 1967 | |
| May 2 | 71°F | 53°F | 97°F 2014 | 44°F 1967 | |
| May 3 | 71°F | 54°F | 93°F 2011 | 43°F 2023 | |
| May 4 | 71°F | 54°F | 88°F 1953 | 45°F 1951 | |
| May 5 | 71°F | 54°F | 92°F 1990 | 43°F 1950 | |
| May 6 | 71°F | 54°F | 101°F 1990 | 41°F 2024 | |
| May 7 | 71°F | 54°F | 89°F 2007 | 44°F 1975 | |
| May 8 | 71°F | 54°F | 93°F 2007 | 45°F 1950 | |
| May 9 | 71°F | 55°F | 93°F 1984 | 44°F 2003 | |
| May 10 | 71°F | 55°F | 91°F 2025 | 43°F 2003 | |
| May 11 | 71°F | 55°F | 88°F 1988 | 43°F 2022 | |
| May 12 | 71°F | 55°F | 96°F 1979 | 43°F 2010 | |
| May 13 | 71°F | 55°F | 101°F 1979 | 46°F 1967 | |
| May 14 | 71°F | 55°F | 98°F 2014 | 45°F 1998 | |
| May 15 | 71°F | 55°F | 101°F 2014 | 46°F 1998 | |
| May 16 | 71°F | 56°F | 98°F 2014 | 47°F 2011 | |
| May 17 | 71°F | 56°F | 94°F 2008 | 46°F 1962 | |
| May 18 | 72°F | 56°F | 93°F 2008 | 47°F 1994 | |
| May 19 | 72°F | 56°F | 90°F 2008 | 46°F 1974 | |
| May 20 | 72°F | 56°F | 90°F 2017 | 43°F 1974 | |
| May 21 | 72°F | 56°F | 88°F 2017 | 47°F 1948 | |
| May 22 | 72°F | 56°F | 88°F 1958 | 45°F 2002 | |
| May 23 | 72°F | 56°F | 84°F 2001 | 47°F 1975 | |
| May 24 | 72°F | 56°F | 81°F 1984 | 46°F 2010 | |
| May 25 | 72°F | 56°F | 82°F 1964 | 46°F 1980 | |
| May 26 | 72°F | 57°F | 85°F 1968 | 46°F 1998 | |
| May 27 | 72°F | 57°F | 85°F 1997 | 48°F 1953 | |
| May 28 | 72°F | 57°F | 93°F 1973 | 45°F 1980 | |
| May 29 | 72°F | 57°F | 96°F 1978 | 48°F 1971 | |
| May 30 | 73°F | 57°F | 81°F 1985 | 46°F 2011 | |
| May 31 | 73°F | 57°F | 83°F 1997 | 48°F 2011 |
Chance of rain
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 6:01 AM, sunset 7:31 PM
- May 31
- sunrise 5:41 AM, sunset 7:52 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00047248 (Rancho Bernardo), public domain. Records: NOAA GHCN-Daily, station USW00093107, 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.