Lake Marcel-Stillwater climate

Lake Marcel-Stillwater Weather in December

NOAA 1991-2020 normals for Tolt S Fk Rsvr, 16.8 km from Lake Marcel-Stillwater

Average highs run from 41°F on December 1 to 40°F on December 31, and lows from 34°F to 32°F. Normal precipitation for the month is 11.84 in over about 22 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 Lake Marcel-Stillwater, in °F, with the record for each date.020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
40°F
Average low
32°F
Precipitation
11.84 in
Snowfall
10.5 in
Record high
68°FDec 10, 2014
Record low
15°FDec 20, 1998
Chance of a freeze
100%
Daylight
8 h 43 min to 8 h 30 min
Cloud cover
72%
Humidity
92%
Dew point
31°F
Wind
5.6 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 141°F34°F59°F 202124°F 201472%11%
Dec 241°F34°F60°F 202024°F 201472%11%
Dec 341°F34°F62°F 200728°F 200972%11%
Dec 441°F33°F58°F 200724°F 201372%12%
Dec 540°F33°F62°F 202023°F 201372%12%
Dec 640°F33°F57°F 201520°F 201372%12%
Dec 740°F33°F57°F 201415°F 201372%12%
Dec 840°F33°F61°F 201517°F 201372%13%
Dec 940°F33°F64°F 201416°F 200972%13%
Dec 1040°F33°F68°F 201415°F 200972%13%
Dec 1139°F32°F59°F 201418°F 200972%13%
Dec 1239°F32°F59°F 201021°F 200972%14%
Dec 1339°F32°F55°F 200428°F 201172%14%
Dec 1439°F32°F62°F 200223°F 200872%14%
Dec 1539°F32°F60°F 202519°F 200872%14%
Dec 1639°F32°F58°F 202518°F 200872%15%
Dec 1739°F32°F57°F 202422°F 201672%15%
Dec 1839°F32°F58°F 200324°F 200872%15%
Dec 1939°F32°F54°F 201920°F 200873%15%
Dec 2039°F32°F59°F 201815°F 199873%15%
Dec 2139°F32°F61°F 202019°F 199873%15%
Dec 2239°F32°F57°F 200515°F 199873%15%
Dec 2339°F32°F58°F 202419°F 199873%16%
Dec 2439°F32°F60°F 200528°F 199873%16%
Dec 2539°F32°F56°F 200527°F 200973%16%
Dec 2639°F32°F56°F 202322°F 202173%16%
Dec 2739°F32°F57°F 202318°F 202173%16%
Dec 2839°F32°F58°F 202324°F 202173%16%
Dec 2939°F32°F65°F 202325°F 202173%16%
Dec 3039°F32°F56°F 202324°F 201073%16%
Dec 3140°F32°F53°F 201920°F 201073%16%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Lake Marcel-Stillwater, in percent, and of at least 0.1 inch of snowfall.0204060801102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PST).

December 1
sunrise 7:35 AM, sunset 4:18 PM
December 31
sunrise 7:56 AM, sunset 4:26 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00458508 (Tolt S Fk Rsvr), public domain. Records: NOAA GHCN-Daily, station USW00094248, 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.