Charles County Weather in December
Average highs run from 53°F on December 1 to 45°F on December 31, and lows from 32°F to 26°F. Normal precipitation for the month is 3.99 in over about 9 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
- 48°F
- Average low
- 29°F
- Precipitation
- 3.99 in
- Snowfall
- 2.0 in
- Record high
- 81°FDec 6, 1998
- Record low
- 4°FDec 17, 1951
- Chance of a freeze
- 100%
- Daylight
- 9 h 41 min to 9 h 32 min
- Cloud cover
- 61%
- Humidity
- 82%
- Dew point
- 33°F
- Wind
- 6.9 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 | 53°F | 32°F | 74°F 2014 | 14°F 1976 | 30% | 2% |
| Dec 2 | 52°F | 31°F | 73°F 1970 | 17°F 1967 | 30% | 2% |
| Dec 3 | 52°F | 31°F | 72°F 1950 | 14°F 1946 | 30% | 2% |
| Dec 4 | 52°F | 31°F | 77°F 1982 | 16°F 1966 | 30% | 2% |
| Dec 5 | 51°F | 31°F | 74°F 1998 | 19°F 1966 | 30% | 2% |
| Dec 6 | 51°F | 30°F | 81°F 1998 | 19°F 2002 | 30% | 2% |
| Dec 7 | 51°F | 30°F | 81°F 1998 | 13°F 2002 | 30% | 2% |
| Dec 8 | 50°F | 30°F | 77°F 1966 | 14°F 1954 | 30% | 2% |
| Dec 9 | 50°F | 30°F | 76°F 1991 | 17°F 2006 | 30% | 3% |
| Dec 10 | 50°F | 30°F | 70°F 1946 | 15°F 1960 | 30% | 3% |
| Dec 11 | 49°F | 29°F | 71°F 2021 | 12°F 1968 | 30% | 3% |
| Dec 12 | 49°F | 29°F | 70°F 2015 | 7°F 1962 | 30% | 3% |
| Dec 13 | 49°F | 29°F | 70°F 1990 | 5°F 1962 | 30% | 3% |
| Dec 14 | 48°F | 29°F | 71°F 2015 | 12°F 1960 | 30% | 3% |
| Dec 15 | 48°F | 29°F | 71°F 1971 | 12°F 1958 | 30% | 3% |
| Dec 16 | 48°F | 29°F | 75°F 1971 | 5°F 1958 | 30% | 3% |
| Dec 17 | 48°F | 28°F | 66°F 2021 | 4°F 1951 | 30% | 3% |
| Dec 18 | 47°F | 28°F | 74°F 2006 | 12°F 1953 | 30% | 3% |
| Dec 19 | 47°F | 28°F | 66°F 1970 | 10°F 1953 | 30% | 3% |
| Dec 20 | 47°F | 28°F | 66°F 1988 | 10°F 1963 | 30% | 4% |
| Dec 21 | 47°F | 28°F | 72°F 2013 | 7°F 1963 | 30% | 4% |
| Dec 22 | 46°F | 28°F | 74°F 2013 | 7°F 1989 | 31% | 4% |
| Dec 23 | 46°F | 27°F | 73°F 1990 | 5°F 1960 | 31% | 4% |
| Dec 24 | 46°F | 27°F | 71°F 2015 | 9°F 2022 | 31% | 4% |
| Dec 25 | 46°F | 27°F | 73°F 1964 | 5°F 1989 | 31% | 4% |
| Dec 26 | 46°F | 27°F | 71°F 1964 | 12°F 1985 | 31% | 4% |
| Dec 27 | 45°F | 27°F | 74°F 2015 | 12°F 1948 | 31% | 4% |
| Dec 28 | 45°F | 27°F | 77°F 1984 | 10°F 1950 | 31% | 4% |
| Dec 29 | 45°F | 26°F | 79°F 1984 | 14°F 1952 | 31% | 4% |
| Dec 30 | 45°F | 26°F | 72°F 1990 | 10°F 1963 | 31% | 5% |
| Dec 31 | 45°F | 26°F | 76°F 1965 | 6°F 1963 | 31% | 5% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- December 1
- sunrise 7:07 AM, sunset 4:48 PM
- December 31
- sunrise 7:25 AM, sunset 4:57 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00185865 (Mechanicsville 5 Ne), public domain. Records: NOAA GHCN-Daily, station USW00013773, 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.