Rehoboth Weather in May
Average highs run from 65°F on May 1 to 74°F on May 31, and lows from 43°F to 52°F. Normal precipitation for the month is 3.38 in over about 11 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
- 70°F
- Average low
- 48°F
- Precipitation
- 3.38 in
- Record high
- 96°FMay 22, 1992
- Record low
- 20°FMay 1, 1922
- Chance of a freeze
- 21%
- Days of 90°F or more
- 0.8
- Daylight
- 14 h 03 min to 15 h 00 min
- Cloud cover
- 64%
- Humidity
- 78%
- Dew point
- 49°F
- Wind
- 5.1 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 | 65°F | 43°F | 87°F 1942 | 20°F 1922 | 36% | 0% |
| May 2 | 65°F | 43°F | 93°F 2001 | 25°F 1931 | 37% | 0% |
| May 3 | 66°F | 44°F | 91°F 2001 | 26°F 1946 | 37% | 0% |
| May 4 | 66°F | 44°F | 91°F 2018 | 24°F 1917 | 37% | 0% |
| May 5 | 66°F | 44°F | 88°F 1944 | 22°F 1926 | 37% | 0% |
| May 6 | 67°F | 45°F | 89°F 1931 | 28°F 1926 | 37% | 0% |
| May 7 | 67°F | 45°F | 91°F 2000 | 25°F 2001 | 37% | 0% |
| May 8 | 67°F | 45°F | 94°F 1930 | 28°F 1925 | 37% | 0% |
| May 9 | 68°F | 46°F | 93°F 2000 | 28°F 1928 | 37% | 0% |
| May 10 | 68°F | 46°F | 95°F 1979 | 26°F 1947 | 37% | 0% |
| May 11 | 68°F | 46°F | 91°F 1993 | 29°F 1932 | 37% | 0% |
| May 12 | 69°F | 47°F | 90°F 2001 | 31°F 1913 | 37% | 0% |
| May 13 | 69°F | 47°F | 88°F 1948 | 26°F 1928 | 37% | 0% |
| May 14 | 69°F | 47°F | 86°F 1947 | 29°F 1996 | 36% | 0% |
| May 15 | 69°F | 48°F | 87°F 2004 | 27°F 1936 | 36% | 0% |
| May 16 | 70°F | 48°F | 87°F 1991 | 24°F 1917 | 36% | 0% |
| May 17 | 70°F | 48°F | 90°F 1977 | 32°F 1928 | 36% | 0% |
| May 18 | 70°F | 49°F | 89°F 1986 | 25°F 1981 | 37% | 0% |
| May 19 | 71°F | 49°F | 94°F 2017 | 27°F 1944 | 37% | 0% |
| May 20 | 71°F | 49°F | 93°F 2026 | 31°F 1935 | 36% | 0% |
| May 21 | 71°F | 49°F | 92°F 1992 | 29°F 1936 | 36% | 0% |
| May 22 | 71°F | 50°F | 96°F 1992 | 30°F 1936 | 36% | 0% |
| May 23 | 72°F | 50°F | 93°F 1992 | 29°F 1932 | 36% | 0% |
| May 24 | 72°F | 50°F | 89°F 1991 | 28°F 1932 | 36% | 0% |
| May 25 | 72°F | 51°F | 93°F 1936 | 31°F 1935 | 36% | 0% |
| May 26 | 72°F | 51°F | 90°F 1981 | 31°F 1925 | 36% | 0% |
| May 27 | 73°F | 51°F | 95°F 2010 | 32°F 1924 | 36% | 0% |
| May 28 | 73°F | 52°F | 91°F 2011 | 30°F 1922 | 35% | 0% |
| May 29 | 73°F | 52°F | 91°F 2016 | 33°F 1927 | 35% | 0% |
| May 30 | 73°F | 52°F | 93°F 1931 | 30°F 1923 | 35% | 0% |
| May 31 | 74°F | 52°F | 95°F 1987 | 31°F 1917 | 35% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- May 1
- sunrise 5:41 AM, sunset 7:44 PM
- May 31
- sunrise 5:13 AM, sunset 8:13 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00198367 (Taunton), public domain. Records: NOAA GHCN-Daily, station USC00195984, 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.