Jefferson County Weather in December
Average highs run from 68°F on December 1 to 63°F on December 31, and lows from 48°F to 44°F. Normal precipitation for the month is 4.98 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
- 66°F
- Average low
- 46°F
- Precipitation
- 4.98 in
- Record high
- 85°FDec 3, 2022
- Record low
- 12°FDec 23, 1989
- Chance of a freeze
- 65%
- Daylight
- 10 h 22 min to 10 h 16 min
- Cloud cover
- 62%
- Humidity
- 84%
- Dew point
- 49°F
- Wind
- 8.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Dec 1 | 68°F | 48°F | 81°F 1970 | 26°F 1974 | 28% |
| Dec 2 | 68°F | 48°F | 84°F 1978 | 29°F 1974 | 28% |
| Dec 3 | 68°F | 48°F | 85°F 2022 | 28°F 1974 | 29% |
| Dec 4 | 68°F | 48°F | 82°F 2012 | 29°F 1974 | 29% |
| Dec 5 | 67°F | 47°F | 82°F 1970 | 27°F 2009 | 29% |
| Dec 6 | 67°F | 47°F | 81°F 1995 | 22°F 1950 | 29% |
| Dec 7 | 67°F | 47°F | 84°F 1978 | 17°F 1950 | 29% |
| Dec 8 | 67°F | 47°F | 81°F 2022 | 28°F 1973 | 29% |
| Dec 9 | 67°F | 47°F | 83°F 2022 | 28°F 1974 | 30% |
| Dec 10 | 66°F | 47°F | 82°F 1993 | 24°F 1978 | 30% |
| Dec 11 | 66°F | 47°F | 81°F 2015 | 28°F 1957 | 30% |
| Dec 12 | 66°F | 46°F | 82°F 2025 | 25°F 1957 | 30% |
| Dec 13 | 66°F | 46°F | 81°F 2016 | 20°F 1962 | 30% |
| Dec 14 | 66°F | 46°F | 80°F 2021 | 26°F 1958 | 30% |
| Dec 15 | 66°F | 46°F | 82°F 2011 | 24°F 1952 | 31% |
| Dec 16 | 65°F | 46°F | 82°F 2021 | 24°F 1951 | 31% |
| Dec 17 | 65°F | 46°F | 82°F 2021 | 24°F 1972 | 31% |
| Dec 18 | 65°F | 45°F | 79°F 2021 | 22°F 1979 | 31% |
| Dec 19 | 65°F | 45°F | 81°F 1978 | 22°F 1996 | 31% |
| Dec 20 | 65°F | 45°F | 81°F 1978 | 25°F 1996 | 31% |
| Dec 21 | 65°F | 45°F | 81°F 2025 | 20°F 1973 | 32% |
| Dec 22 | 64°F | 45°F | 79°F 1981 | 16°F 1989 | 32% |
| Dec 23 | 64°F | 45°F | 82°F 2015 | 12°F 1989 | 32% |
| Dec 24 | 64°F | 45°F | 81°F 2015 | 13°F 1989 | 32% |
| Dec 25 | 64°F | 45°F | 82°F 2015 | 15°F 1983 | 32% |
| Dec 26 | 64°F | 44°F | 81°F 2015 | 21°F 1983 | 32% |
| Dec 27 | 64°F | 44°F | 82°F 2016 | 30°F 1972 | 32% |
| Dec 28 | 64°F | 44°F | 83°F 2025 | 30°F 1961 | 32% |
| Dec 29 | 64°F | 44°F | 83°F 2021 | 26°F 1961 | 32% |
| Dec 30 | 64°F | 44°F | 82°F 2021 | 22°F 1983 | 32% |
| Dec 31 | 63°F | 44°F | 81°F 2021 | 21°F 1983 | 32% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 6:55 AM, sunset 5:17 PM
- December 31
- sunrise 7:12 AM, sunset 5:28 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00012917 (Port Arthur Se Tx AP), public domain. Records: NOAA GHCN-Daily, station USW00012917, 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.