Black Diamond Weather in May
Average highs run from 85°F on May 1 to 90°F on May 31, and lows from 58°F to 66°F. Normal precipitation for the month is 3.09 in over about 6 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
- 88°F
- Average low
- 62°F
- Precipitation
- 3.09 in
- Record high
- 101°FMay 26, 2012
- Record low
- 42°FMay 8, 1992
- Chance of a freeze
- 0%
- Days of 90°F or more
- 15.2
- Daylight
- 13 h 17 min to 13 h 52 min
- Cloud cover
- 46%
- Humidity
- 69%
- Dew point
- 65°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 |
|---|---|---|---|---|---|
| May 1 | 85°F | 58°F | 95°F 2016 | 47°F 1992 | 17% |
| May 2 | 86°F | 58°F | 95°F 1953 | 46°F 1992 | 17% |
| May 3 | 86°F | 58°F | 97°F 1990 | 48°F 1925 | 17% |
| May 4 | 86°F | 59°F | 95°F 2011 | 43°F 1929 | 17% |
| May 5 | 86°F | 59°F | 96°F 1908 | 48°F 1997 | 17% |
| May 6 | 86°F | 59°F | 97°F 2002 | 47°F 2016 | 17% |
| May 7 | 87°F | 59°F | 99°F 1989 | 44°F 2017 | 18% |
| May 8 | 87°F | 60°F | 97°F 1905 | 42°F 1992 | 18% |
| May 9 | 87°F | 60°F | 96°F 1955 | 44°F 1992 | 18% |
| May 10 | 87°F | 60°F | 98°F 1955 | 44°F 1992 | 18% |
| May 11 | 87°F | 60°F | 98°F 1916 | 47°F 1923 | 19% |
| May 12 | 88°F | 61°F | 97°F 1955 | 50°F 1924 | 19% |
| May 13 | 88°F | 61°F | 99°F 2011 | 48°F 1989 | 20% |
| May 14 | 88°F | 61°F | 98°F 1967 | 45°F 1977 | 20% |
| May 15 | 88°F | 61°F | 98°F 1985 | 45°F 2013 | 21% |
| May 16 | 88°F | 62°F | 96°F 2000 | 47°F 1917 | 21% |
| May 17 | 88°F | 62°F | 98°F 1930 | 50°F 2014 | 22% |
| May 18 | 88°F | 62°F | 98°F 1930 | 48°F 2014 | 22% |
| May 19 | 89°F | 63°F | 96°F 1930 | 50°F 2011 | 23% |
| May 20 | 89°F | 63°F | 96°F 2015 | 47°F 2007 | 24% |
| May 21 | 89°F | 63°F | 98°F 2011 | 52°F 2014 | 24% |
| May 22 | 89°F | 63°F | 98°F 2011 | 47°F 1994 | 25% |
| May 23 | 89°F | 64°F | 98°F 2011 | 51°F 1994 | 26% |
| May 24 | 89°F | 64°F | 99°F 2020 | 50°F 1993 | 26% |
| May 25 | 89°F | 64°F | 99°F 2012 | 50°F 1993 | 27% |
| May 26 | 89°F | 65°F | 101°F 2012 | 50°F 1985 | 28% |
| May 27 | 89°F | 65°F | 101°F 2012 | 52°F 1979 | 29% |
| May 28 | 89°F | 65°F | 99°F 1962 | 55°F 1979 | 29% |
| May 29 | 90°F | 66°F | 100°F 1989 | 54°F 1901 | 30% |
| May 30 | 90°F | 66°F | 101°F 2019 | 57°F 2003 | 31% |
| May 31 | 90°F | 66°F | 98°F 2024 | 48°F 1984 | 32% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EDT).
- May 1
- sunrise 6:49 AM, sunset 8:06 PM
- May 31
- sunrise 6:32 AM, sunset 8:24 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00084289 (Inverness 3 Se), public domain. Records: NOAA GHCN-Daily, station USC00084289, 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.