Monroe climate

Monroe Weather in December

NOAA 1991-2020 normals for Corvallis 10 Ssw, 11.9 km from Monroe

Average highs run from 47°F on December 1 to 46°F on December 31, and lows from 35°F to 34°F. Normal precipitation for the month is 7.98 in over about 19 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 Monroe, in °F, with the record for each date.020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
46°F
Average low
34°F
Precipitation
7.98 in
Snowfall
0.9 in
Record high
65°FDec 1, 2021
Record low
4°FDec 8, 2013
Chance of a freeze
99%
Daylight
9 h 06 min to 8 h 55 min
Cloud cover
77%
Humidity
93%
Dew point
40°F
Wind
6.5 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 147°F35°F65°F 202127°F 202459%1%
Dec 247°F35°F56°F 200826°F 200959%1%
Dec 347°F35°F58°F 202324°F 200959%2%
Dec 446°F35°F62°F 202321°F 201360%2%
Dec 546°F35°F62°F 202316°F 201360%2%
Dec 646°F34°F57°F 201722°F 201360%2%
Dec 746°F34°F62°F 20159°F 201360%2%
Dec 846°F34°F61°F 20154°F 201360%2%
Dec 946°F34°F61°F 20146°F 201361%2%
Dec 1046°F34°F63°F 20259°F 200961%2%
Dec 1146°F34°F62°F 202512°F 200961%2%
Dec 1245°F34°F60°F 201015°F 201362%2%
Dec 1345°F34°F58°F 200622°F 201162%2%
Dec 1445°F34°F59°F 201824°F 201162%2%
Dec 1545°F34°F61°F 202519°F 200862%2%
Dec 1645°F34°F60°F 202511°F 200863%2%
Dec 1745°F34°F60°F 202510°F 200863%2%
Dec 1845°F34°F59°F 202427°F 201963%2%
Dec 1945°F34°F58°F 200927°F 200863%2%
Dec 2045°F34°F58°F 201429°F 201763%2%
Dec 2145°F34°F59°F 202026°F 201763%2%
Dec 2245°F34°F56°F 201323°F 202263%2%
Dec 2345°F34°F57°F 201423°F 202263%2%
Dec 2445°F34°F54°F 201428°F 201663%2%
Dec 2546°F34°F61°F 202223°F 201663%2%
Dec 2646°F34°F59°F 202224°F 201662%2%
Dec 2746°F34°F55°F 202225°F 202162%2%
Dec 2846°F34°F56°F 201125°F 200962%2%
Dec 2946°F34°F54°F 201726°F 202062%3%
Dec 3046°F34°F53°F 201121°F 201461%3%
Dec 3146°F34°F53°F 200918°F 201461%3%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Monroe, 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 7:29 AM, sunset 4:35 PM
December 31
sunrise 7:49 AM, sunset 4:44 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00004236 (Corvallis 10 Ssw), public domain. Records: NOAA GHCN-Daily, station USW00004236, 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.