Carolina Weather in December

NASA POWER reanalysis for the half-degree grid cell around Carolina, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 32°C on December 1 to 31°C on December 31, and lows from 23°C to 23°C. Normal precipitation for the month is 195 mm over about 25 wet days.

December day by day

The normal high and low for each date, in °C.

Normal low
Normal high
Reanalysis extreme high
Reanalysis extreme low

December at a glance

Average high: 31°C
Average low: 23°C
Precipitation: 195 mm
Reanalysis high: 41°CDec 2, 2015
Reanalysis low: 20°CDec 19, 1991
Daylight: 12 h 32 min to 12 h 32 min
Cloud cover: 80%
Humidity: 76%
Dew point: 22°C
Wind: 7.9 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

Date	Normal high	Normal low	Reanalysis high	Reanalysis low	Chance wet
Dec 1	32°C	23°C	40°C 2015	21°C 1995	73%
Dec 2	32°C	23°C	41°C 2015	20°C 1992	74%
Dec 3	32°C	23°C	38°C 2015	21°C 1996	74%
Dec 4	32°C	23°C	37°C 2015	21°C 1993	74%
Dec 5	32°C	23°C	37°C 2020	22°C 2018	74%
Dec 6	32°C	23°C	37°C 2020	21°C 1999	74%
Dec 7	32°C	23°C	37°C 2015	21°C 2011	74%
Dec 8	32°C	23°C	38°C 2015	21°C 1992	75%
Dec 9	32°C	23°C	39°C 2015	21°C 1999	76%
Dec 10	31°C	23°C	38°C 2015	22°C 1996	76%
Dec 11	31°C	23°C	39°C 2015	21°C 1995	78%
Dec 12	31°C	23°C	37°C 2015	21°C 1992	79%
Dec 13	31°C	23°C	38°C 2015	21°C 2018	79%
Dec 14	31°C	23°C	37°C 2015	21°C 1997	80%
Dec 15	31°C	23°C	39°C 2015	21°C 1993	80%
Dec 16	31°C	23°C	39°C 2015	20°C 1992	81%
Dec 17	31°C	23°C	35°C 2019	21°C 1992	80%
Dec 18	31°C	23°C	37°C 2019	20°C 2010	80%
Dec 19	31°C	23°C	37°C 2019	20°C 1991	80%
Dec 20	31°C	23°C	38°C 2019	21°C 1995	79%
Dec 21	31°C	23°C	38°C 2019	21°C 2002	79%
Dec 22	31°C	23°C	37°C 2019	21°C 1992	78%
Dec 23	31°C	23°C	36°C 2016	21°C 2009	77%
Dec 24	31°C	23°C	37°C 2016	21°C 1998	76%
Dec 25	31°C	23°C	36°C 2016	21°C 2018	77%
Dec 26	31°C	23°C	35°C 2016	21°C 1995	77%
Dec 27	31°C	23°C	35°C 2019	21°C 2000	77%
Dec 28	31°C	23°C	34°C 2020	21°C 1995	76%
Dec 29	31°C	23°C	36°C 2020	20°C 1995	77%
Dec 30	31°C	23°C	35°C 2020	21°C 2005	77%
Dec 31	31°C	23°C	36°C 2020	21°C 1992	77%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT-3).

December 1: sunrise 5:43 AM, sunset 6:15 PM
December 31: sunrise 5:57 AM, sunset 6:29 PM

Every day of December: sun and moon

Other months

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: 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.