Trinity County climate

Trinity County Weather in December

NOAA 1991-2020 normals for Groveton, 12 km from Trinity County

Average highs run from 67°F on December 1 to 62°F on December 31, and lows from 43°F to 37°F.

December day by day

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

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

December at a glance

Average high
64°F
Average low
40°F
Record high
93°FDec 10, 2007
Record low
0°FDec 24, 1989
Chance of a freeze
92%
Daylight
10 h 17 min to 10 h 10 min
Cloud cover
61%
Humidity
83%
Dew point
44°F
Wind
4.9 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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Dec 167°F43°F82°F 195019°F 19760%
Dec 267°F43°F84°F 201221°F 19790%
Dec 366°F43°F84°F 201226°F 19740%
Dec 466°F43°F84°F 199524°F 19890%
Dec 566°F42°F83°F 196120°F 20090%
Dec 666°F42°F84°F 195614°F 19500%
Dec 766°F42°F83°F 196611°F 19500%
Dec 865°F42°F83°F 195615°F 19500%
Dec 965°F41°F84°F 200719°F 19780%
Dec 1065°F41°F93°F 200717°F 19780%
Dec 1165°F41°F81°F 202117°F 19780%
Dec 1265°F41°F83°F 200715°F 19570%
Dec 1364°F40°F82°F 194815°F 19570%
Dec 1464°F40°F81°F 194818°F 19620%
Dec 1564°F40°F79°F 197519°F 19160%
Dec 1664°F40°F81°F 190812°F 19890%
Dec 1764°F39°F81°F 190811°F 19890%
Dec 1863°F39°F80°F 200621°F 19720%
Dec 1963°F39°F79°F 198017°F 19960%
Dec 2063°F39°F80°F 201218°F 19960%
Dec 2163°F39°F82°F 201218°F 19510%
Dec 2263°F39°F84°F 201010°F 19830%
Dec 2363°F38°F80°F 19811°F 19890%
Dec 2462°F38°F80°F 19550°F 19890%
Dec 2562°F38°F85°F 19555°F 19830%
Dec 2662°F38°F85°F 19557°F 19830%
Dec 2762°F38°F79°F 201518°F 19830%
Dec 2862°F38°F79°F 202122°F 19040%
Dec 2962°F38°F80°F 201617°F 19830%
Dec 3062°F37°F80°F 202110°F 19830%
Dec 3162°F37°F82°F 196410°F 19830%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Trinity County, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CST).

December 1
sunrise 7:01 AM, sunset 5:18 PM
December 31
sunrise 7:19 AM, sunset 5:29 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00413778 (Groveton), public domain. Records: NOAA GHCN-Daily, station USC00412114, 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.