Descanso Weather in May
Average highs run from 63°F on May 1 to 71°F on May 31, and lows from 41°F to 47°F. Normal precipitation for the month is 1.06 in over about 3 wet days.
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
- 67°F
- Average low
- 44°F
- Precipitation
- 1.06 in
- Snowfall
- 0.1 in
- Record high
- 104°FMay 3, 2004
- Record low
- 43°FMay 1, 1999
- Chance of a freeze
- 21%
- Daylight
- 13 h 30 min to 14 h 10 min
- Cloud cover
- 29%
- Humidity
- 44%
- Dew point
- 42°F
- Wind
- 12.1 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| May 1 | 63°F | 41°F | 97°F 1996 | 43°F 1999 | 15% | 2% |
| May 2 | 63°F | 41°F | 97°F 2014 | 47°F 1983 | 14% | 2% |
| May 3 | 63°F | 42°F | 104°F 2004 | 47°F 1983 | 14% | 1% |
| May 4 | 63°F | 42°F | 98°F 2004 | 46°F 1988 | 14% | 1% |
| May 5 | 64°F | 42°F | 100°F 1990 | 45°F 1999 | 14% | 1% |
| May 6 | 64°F | 42°F | 100°F 1990 | 44°F 2024 | 13% | 1% |
| May 7 | 64°F | 42°F | 94°F 2004 | 45°F 1983 | 13% | 1% |
| May 8 | 64°F | 43°F | 95°F 2001 | 44°F 1986 | 13% | 1% |
| May 9 | 65°F | 43°F | 95°F 1981 | 44°F 1986 | 13% | 1% |
| May 10 | 65°F | 43°F | 99°F 2025 | 43°F 2003 | 12% | 1% |
| May 11 | 65°F | 43°F | 95°F 1996 | 46°F 2003 | 12% | 1% |
| May 12 | 65°F | 43°F | 99°F 2013 | 45°F 1983 | 12% | 1% |
| May 13 | 66°F | 43°F | 101°F 2013 | 47°F 1985 | 12% | 1% |
| May 14 | 66°F | 44°F | 99°F 2014 | 47°F 1985 | 11% | 1% |
| May 15 | 66°F | 44°F | 104°F 2014 | 47°F 1998 | 11% | 1% |
| May 16 | 67°F | 44°F | 98°F 2014 | 48°F 1995 | 11% | 0% |
| May 17 | 67°F | 44°F | 98°F 2008 | 48°F 1981 | 11% | 0% |
| May 18 | 67°F | 44°F | 95°F 2008 | 49°F 1983 | 10% | 0% |
| May 19 | 67°F | 44°F | 96°F 2008 | 48°F 2011 | 10% | 0% |
| May 20 | 68°F | 45°F | 94°F 2017 | 48°F 1991 | 10% | 0% |
| May 21 | 68°F | 45°F | 93°F 2005 | 46°F 1981 | 10% | 0% |
| May 22 | 68°F | 45°F | 98°F 2001 | 47°F 2002 | 9% | 0% |
| May 23 | 69°F | 45°F | 93°F 2001 | 48°F 2021 | 9% | 0% |
| May 24 | 69°F | 45°F | 89°F 2021 | 45°F 2010 | 9% | 0% |
| May 25 | 69°F | 46°F | 88°F 2006 | 46°F 1980 | 8% | 0% |
| May 26 | 70°F | 46°F | 93°F 2000 | 46°F 1980 | 8% | 0% |
| May 27 | 70°F | 46°F | 94°F 1997 | 49°F 1980 | 8% | 0% |
| May 28 | 70°F | 46°F | 103°F 1984 | 48°F 2019 | 8% | 0% |
| May 29 | 70°F | 46°F | 98°F 1984 | 49°F 1980 | 7% | 0% |
| May 30 | 71°F | 47°F | 89°F 2025 | 47°F 2011 | 7% | 0% |
| May 31 | 71°F | 47°F | 93°F 2004 | 47°F 1988 | 7% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 5:59 AM, sunset 7:29 PM
- May 31
- sunrise 5:39 AM, sunset 7:49 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00042239 (Cuyamaca), public domain. Records: NOAA GHCN-Daily, station USC00042706, 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.