Drain Weather in May
Average highs run from 68°F on May 1 to 73°F on May 31, and lows from 41°F to 46°F. Normal precipitation for the month is 2.69 in over about 12 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
- 71°F
- Average low
- 44°F
- Precipitation
- 2.69 in
- Record high
- 98°FMay 18, 2008
- Record low
- 23°FMay 1, 1954
- Chance of a freeze
- 23%
- Days of 90°F or more
- 1.1
- Daylight
- 14 h 11 min to 15 h 12 min
- Cloud cover
- 65%
- Humidity
- 85%
- Dew point
- 48°F
- Wind
- 4.3 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 | 68°F | 41°F | 90°F 2014 | 23°F 1954 | 47% | 0% |
| May 2 | 68°F | 42°F | 85°F 1946 | 28°F 1964 | 46% | 0% |
| May 3 | 68°F | 42°F | 84°F 1992 | 30°F 1981 | 46% | 0% |
| May 4 | 68°F | 42°F | 85°F 1992 | 26°F 1982 | 45% | 0% |
| May 5 | 69°F | 42°F | 87°F 2013 | 25°F 1982 | 45% | 0% |
| May 6 | 69°F | 42°F | 87°F 1992 | 29°F 1978 | 44% | 0% |
| May 7 | 69°F | 42°F | 90°F 1987 | 30°F 1968 | 44% | 0% |
| May 8 | 69°F | 43°F | 84°F 1923 | 26°F 1985 | 43% | 0% |
| May 9 | 70°F | 43°F | 89°F 1987 | 30°F 1955 | 43% | 0% |
| May 10 | 70°F | 43°F | 88°F 1987 | 29°F 1920 | 42% | 0% |
| May 11 | 70°F | 43°F | 92°F 2019 | 30°F 1920 | 42% | 0% |
| May 12 | 70°F | 43°F | 88°F 2024 | 25°F 1985 | 41% | 0% |
| May 13 | 70°F | 43°F | 89°F 1975 | 28°F 1940 | 41% | 0% |
| May 14 | 71°F | 44°F | 93°F 1939 | 30°F 1964 | 41% | 0% |
| May 15 | 71°F | 44°F | 90°F 2023 | 27°F 1985 | 40% | 0% |
| May 16 | 71°F | 44°F | 94°F 2023 | 30°F 1980 | 40% | 0% |
| May 17 | 71°F | 44°F | 96°F 2008 | 31°F 1976 | 40% | 0% |
| May 18 | 71°F | 44°F | 98°F 2008 | 30°F 1931 | 40% | 0% |
| May 19 | 72°F | 44°F | 86°F 2008 | 28°F 1987 | 39% | 0% |
| May 20 | 72°F | 45°F | 90°F 1963 | 30°F 1987 | 39% | 0% |
| May 21 | 72°F | 45°F | 91°F 1988 | 30°F 1992 | 39% | 0% |
| May 22 | 72°F | 45°F | 86°F 2000 | 29°F 1920 | 38% | 0% |
| May 23 | 72°F | 45°F | 97°F 2001 | 30°F 1964 | 38% | 0% |
| May 24 | 72°F | 45°F | 97°F 1992 | 30°F 1972 | 38% | 0% |
| May 25 | 72°F | 45°F | 88°F 1947 | 27°F 1975 | 37% | 0% |
| May 26 | 72°F | 45°F | 85°F 1936 | 31°F 2024 | 37% | 0% |
| May 27 | 73°F | 46°F | 89°F 2005 | 30°F 1921 | 36% | 0% |
| May 28 | 73°F | 46°F | 93°F 1983 | 31°F 1950 | 36% | 0% |
| May 29 | 73°F | 46°F | 88°F 2009 | 31°F 1976 | 36% | 0% |
| May 30 | 73°F | 46°F | 93°F 1931 | 28°F 1920 | 35% | 0% |
| May 31 | 73°F | 46°F | 92°F 1986 | 30°F 1919 | 35% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 6:05 AM, sunset 8:16 PM
- May 31
- sunrise 5:35 AM, sunset 8:47 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00352406 (Drain), public domain. Records: NOAA GHCN-Daily, station USC00351897, 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.