Darlington County Weather in May
Average highs run from 80°F on May 1 to 85°F on May 31, and lows from 53°F to 63°F. Normal precipitation for the month is 3.90 in over about 9 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
- 82°F
- Average low
- 58°F
- Precipitation
- 3.90 in
- Record high
- 103°FMay 26, 1911
- Record low
- 34°FMay 11, 1983
- Chance of a freeze
- 0%
- Days of 90°F or more
- 6.3
- Daylight
- 13 h 34 min to 14 h 17 min
- Cloud cover
- 54%
- Humidity
- 71%
- Dew point
- 60°F
- Wind
- 7.4 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 | 80°F | 53°F | 93°F 1910 | 39°F 1921 | 27% | 0% |
| May 2 | 80°F | 53°F | 92°F 1910 | 35°F 1963 | 28% | 0% |
| May 3 | 80°F | 54°F | 95°F 1938 | 38°F 1981 | 28% | 0% |
| May 4 | 80°F | 54°F | 95°F 1938 | 39°F 1939 | 28% | 0% |
| May 5 | 80°F | 54°F | 96°F 1930 | 38°F 1940 | 28% | 0% |
| May 6 | 81°F | 54°F | 98°F 1977 | 37°F 1983 | 28% | 0% |
| May 7 | 81°F | 55°F | 98°F 1940 | 39°F 1911 | 27% | 0% |
| May 8 | 81°F | 55°F | 98°F 1916 | 37°F 1989 | 27% | 0% |
| May 9 | 81°F | 55°F | 100°F 1936 | 36°F 1983 | 27% | 0% |
| May 10 | 81°F | 56°F | 100°F 1936 | 38°F 1906 | 28% | 0% |
| May 11 | 82°F | 56°F | 98°F 1916 | 34°F 1983 | 28% | 0% |
| May 12 | 82°F | 56°F | 94°F 1911 | 40°F 1913 | 28% | 0% |
| May 13 | 82°F | 57°F | 96°F 1982 | 42°F 1917 | 28% | 0% |
| May 14 | 82°F | 57°F | 98°F 1982 | 40°F 1917 | 28% | 0% |
| May 15 | 82°F | 57°F | 96°F 1933 | 36°F 2007 | 28% | 0% |
| May 16 | 82°F | 58°F | 98°F 1941 | 35°F 2007 | 28% | 0% |
| May 17 | 83°F | 58°F | 99°F 1941 | 40°F 1983 | 28% | 0% |
| May 18 | 83°F | 58°F | 96°F 1960 | 40°F 1983 | 28% | 0% |
| May 19 | 83°F | 59°F | 98°F 1906 | 42°F 1973 | 29% | 0% |
| May 20 | 83°F | 59°F | 97°F 1927 | 41°F 1983 | 29% | 0% |
| May 21 | 83°F | 59°F | 100°F 1938 | 44°F 2002 | 29% | 0% |
| May 22 | 84°F | 60°F | 101°F 1941 | 44°F 1907 | 29% | 0% |
| May 23 | 84°F | 60°F | 102°F 1941 | 44°F 2002 | 29% | 0% |
| May 24 | 84°F | 60°F | 102°F 1903 | 43°F 1931 | 29% | 0% |
| May 25 | 84°F | 61°F | 99°F 1953 | 46°F 1951 | 29% | 0% |
| May 26 | 84°F | 61°F | 103°F 1911 | 45°F 1935 | 29% | 0% |
| May 27 | 85°F | 61°F | 99°F 1916 | 43°F 1925 | 30% | 0% |
| May 28 | 85°F | 62°F | 100°F 1914 | 44°F 1961 | 30% | 0% |
| May 29 | 85°F | 62°F | 102°F 1941 | 46°F 1907 | 30% | 0% |
| May 30 | 85°F | 62°F | 100°F 2019 | 50°F 1906 | 30% | 0% |
| May 31 | 85°F | 63°F | 100°F 1918 | 45°F 1930 | 31% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- May 1
- sunrise 6:30 AM, sunset 8:04 PM
- May 31
- sunrise 6:09 AM, sunset 8:26 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00383990 (Hartsville), public domain. Records: NOAA GHCN-Daily, station USC00382260, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.