Mount Pleasant Weather in December
Average highs run from 56°F on December 1 to 47°F on December 31, and lows from 33°F to 28°F. Normal precipitation for the month is 6.52 in over about 10 wet days.
December day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 51°F
- Average low
- 30°F
- Precipitation
- 6.52 in
- Record high
- 76°FDec 3, 1956
- Record low
- -10°FDec 22, 1989
- Chance of a freeze
- 100%
- Daylight
- 9 h 56 min to 9 h 48 min
- Cloud cover
- 66%
- Humidity
- 84%
- Dew point
- 35°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 |
|---|---|---|---|---|---|---|
| Dec 1 | 56°F | 33°F | 74°F 2006 | 9°F 1976 | 32% | 0% |
| Dec 2 | 56°F | 33°F | 70°F 1956 | 14°F 1960 | 32% | 0% |
| Dec 3 | 55°F | 33°F | 76°F 1956 | 14°F 1979 | 32% | 0% |
| Dec 4 | 55°F | 33°F | 76°F 1982 | 14°F 1979 | 32% | 0% |
| Dec 5 | 55°F | 32°F | 75°F 2013 | 19°F 1974 | 32% | 0% |
| Dec 6 | 54°F | 32°F | 72°F 2013 | 15°F 2005 | 32% | 0% |
| Dec 7 | 54°F | 32°F | 72°F 1980 | 9°F 1970 | 32% | 0% |
| Dec 8 | 53°F | 32°F | 74°F 1978 | 10°F 1977 | 32% | 0% |
| Dec 9 | 53°F | 32°F | 73°F 1978 | 12°F 2006 | 32% | 0% |
| Dec 10 | 53°F | 31°F | 74°F 2007 | 10°F 1977 | 32% | 0% |
| Dec 11 | 52°F | 31°F | 72°F 2021 | 10°F 1977 | 32% | 0% |
| Dec 12 | 52°F | 31°F | 76°F 2007 | -1°F 1962 | 32% | 0% |
| Dec 13 | 52°F | 31°F | 70°F 1972 | -6°F 1962 | 33% | 0% |
| Dec 14 | 51°F | 31°F | 70°F 1975 | 8°F 2010 | 33% | 0% |
| Dec 15 | 51°F | 31°F | 74°F 1984 | 9°F 1963 | 33% | 0% |
| Dec 16 | 51°F | 30°F | 72°F 1984 | 2°F 1989 | 33% | 0% |
| Dec 17 | 50°F | 30°F | 73°F 1984 | 3°F 1989 | 33% | 0% |
| Dec 18 | 50°F | 30°F | 71°F 2006 | 7°F 1953 | 33% | 0% |
| Dec 19 | 50°F | 30°F | 73°F 1976 | 2°F 1963 | 33% | 0% |
| Dec 20 | 49°F | 30°F | 69°F 2008 | 2°F 1981 | 33% | 0% |
| Dec 21 | 49°F | 29°F | 73°F 1967 | 1°F 1981 | 33% | 0% |
| Dec 22 | 49°F | 29°F | 71°F 1967 | -10°F 1989 | 33% | 0% |
| Dec 23 | 49°F | 29°F | 68°F 1954 | -10°F 1989 | 33% | 0% |
| Dec 24 | 48°F | 29°F | 76°F 1964 | -8°F 1989 | 33% | 0% |
| Dec 25 | 48°F | 29°F | 75°F 2025 | -6°F 1983 | 33% | 0% |
| Dec 26 | 48°F | 29°F | 73°F 2021 | -5°F 1983 | 33% | 0% |
| Dec 27 | 48°F | 28°F | 73°F 1971 | 6°F 1985 | 33% | 0% |
| Dec 28 | 48°F | 28°F | 75°F 1982 | 11°F 1977 | 32% | 0% |
| Dec 29 | 47°F | 28°F | 72°F 2025 | 9°F 1961 | 32% | 0% |
| Dec 30 | 47°F | 28°F | 71°F 1996 | 2°F 1983 | 32% | 0% |
| Dec 31 | 47°F | 28°F | 74°F 1984 | 1°F 1983 | 32% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 6:40 AM, sunset 4:36 PM
- December 31
- sunrise 6:58 AM, sunset 4:46 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00406340 (Mt Pleasant 1N), public domain. Records: NOAA GHCN-Daily, station USC00406340, 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.