Mount Pleasant Weather in May
Average highs run from 79°F on May 1 to 85°F on May 31, and lows from 59°F to 67°F. Normal precipitation for the month is 3.33 in.
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
- 63°F
- Precipitation
- 3.33 in
- Record high
- 99°FMay 26, 1953
- Record low
- 37°FMay 30, 1971
- Chance of a freeze
- 0%
- Days of 90°F or more
- 2.2
- Daylight
- 13 h 29 min to 14 h 09 min
- Cloud cover
- 52%
- Humidity
- 73%
- Dew point
- 63°F
- Wind
- 6.7 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 | 79°F | 59°F | 91°F 1959 | 44°F 2006 | 0% | |
| May 2 | 79°F | 59°F | 90°F 1952 | 40°F 2005 | 0% | |
| May 3 | 80°F | 59°F | 90°F 1974 | 48°F 1971 | 0% | |
| May 4 | 80°F | 60°F | 90°F 2002 | 42°F 2005 | 0% | |
| May 5 | 80°F | 60°F | 90°F 1974 | 40°F 1973 | 0% | |
| May 6 | 80°F | 60°F | 94°F 1952 | 42°F 1973 | 0% | |
| May 7 | 80°F | 61°F | 91°F 2014 | 46°F 2005 | 0% | |
| May 8 | 81°F | 61°F | 87°F 2014 | 43°F 1989 | 0% | |
| May 9 | 81°F | 61°F | 91°F 2016 | 45°F 2007 | 0% | |
| May 10 | 81°F | 62°F | 92°F 1963 | 45°F 1977 | 0% | |
| May 11 | 81°F | 62°F | 94°F 1963 | 51°F 1972 | 0% | |
| May 12 | 82°F | 62°F | 93°F 2018 | 47°F 1989 | 0% | |
| May 13 | 82°F | 63°F | 94°F 1953 | 48°F 2009 | 0% | |
| May 14 | 82°F | 63°F | 94°F 1956 | 49°F 1971 | 0% | |
| May 15 | 82°F | 63°F | 95°F 1962 | 49°F 2021 | 0% | |
| May 16 | 82°F | 63°F | 95°F 1995 | 44°F 1971 | 0% | |
| May 17 | 83°F | 64°F | 92°F 1963 | 43°F 1971 | 0% | |
| May 18 | 83°F | 64°F | 94°F 1986 | 45°F 2009 | 0% | |
| May 19 | 83°F | 64°F | 95°F 1962 | 44°F 2009 | 0% | |
| May 20 | 83°F | 64°F | 91°F 2025 | 48°F 2009 | 0% | |
| May 21 | 83°F | 65°F | 92°F 1970 | 47°F 1994 | 0% | |
| May 22 | 83°F | 65°F | 94°F 1998 | 51°F 1993 | 0% | |
| May 23 | 84°F | 65°F | 95°F 1953 | 49°F 2005 | 0% | |
| May 24 | 84°F | 66°F | 94°F 1994 | 48°F 2005 | 0% | |
| May 25 | 84°F | 66°F | 97°F 1953 | 46°F 2005 | 0% | |
| May 26 | 84°F | 66°F | 99°F 1953 | 45°F 2005 | 0% | |
| May 27 | 84°F | 66°F | 97°F 1962 | 52°F 1961 | 0% | |
| May 28 | 85°F | 66°F | 99°F 2019 | 53°F 1961 | 0% | |
| May 29 | 85°F | 67°F | 99°F 2019 | 42°F 1971 | 0% | |
| May 30 | 85°F | 67°F | 99°F 2019 | 37°F 1971 | 0% | |
| May 31 | 85°F | 67°F | 96°F 1953 | 51°F 1984 | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- May 1
- sunrise 6:32 AM, sunset 8:01 PM
- May 31
- sunrise 6:13 AM, sunset 8:22 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00388405 (Sullivans Is), public domain. Records: NOAA GHCN-Daily, station USC00388405, 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.