Jefferson climate

Jefferson Weather in December

NOAA 1991-2020 normals for Charleston WFO, 8.7 km from Jefferson

Average highs run from 51°F on December 1 to 43°F on December 31, and lows from 30°F to 25°F. Normal precipitation for the month is 4.08 in over about 15 wet days.

December day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Jefferson, in °F, with the record for each date.-20020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
47°F
Average low
27°F
Precipitation
4.08 in
Snowfall
5.0 in
Record high
80°FDec 3, 1982
Record low
-12°FDec 23, 1989
Chance of a freeze
100%
Daylight
9 h 42 min to 9 h 32 min
Cloud cover
74%
Humidity
84%
Dew point
31°F
Wind
4.7 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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Dec 151°F30°F74°F 20066°F 196444%10%
Dec 251°F29°F78°F 198214°F 196044%10%
Dec 350°F29°F80°F 198210°F 196645%11%
Dec 450°F29°F76°F 19829°F 196645%11%
Dec 550°F29°F77°F 200113°F 197445%11%
Dec 649°F29°F75°F 199810°F 197746%11%
Dec 749°F29°F77°F 19514°F 197746%12%
Dec 849°F29°F72°F 19666°F 197746%12%
Dec 948°F28°F76°F 196611°F 199546%12%
Dec 1048°F28°F80°F 19717°F 195847%12%
Dec 1148°F28°F73°F 20076°F 195747%12%
Dec 1247°F28°F74°F 20150°F 196247%13%
Dec 1347°F28°F69°F 19840°F 196247%13%
Dec 1447°F28°F73°F 20159°F 202548%13%
Dec 1547°F28°F79°F 19713°F 202548%13%
Dec 1646°F27°F72°F 20212°F 195148%13%
Dec 1746°F27°F72°F 1984-2°F 198948%14%
Dec 1846°F27°F71°F 20162°F 198948%14%
Dec 1946°F27°F65°F 20026°F 196448%14%
Dec 2045°F27°F67°F 19490°F 196348%14%
Dec 2145°F26°F75°F 2013-2°F 196348%15%
Dec 2245°F26°F74°F 2013-10°F 198948%15%
Dec 2345°F26°F72°F 2015-12°F 198949%15%
Dec 2445°F26°F73°F 1964-6°F 198349%16%
Dec 2544°F26°F76°F 1982-10°F 198349%16%
Dec 2644°F26°F73°F 20161°F 198349%16%
Dec 2744°F25°F77°F 20153°F 198949%17%
Dec 2844°F25°F73°F 19826°F 197749%17%
Dec 2944°F25°F75°F 19849°F 196149%17%
Dec 3043°F25°F72°F 19902°F 198349%18%
Dec 3143°F25°F79°F 1951-1°F 198349%18%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Jefferson, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EST).

December 1
sunrise 7:25 AM, sunset 5:07 PM
December 31
sunrise 7:44 AM, sunset 5:16 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00461579 (Charleston WFO), public domain. Records: NOAA GHCN-Daily, station USW00013866, 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.