Monroe climate

Monroe Weather in October

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

Average highs run from 71°F on October 1 to 58°F on October 31, and lows from 44°F to 40°F. Normal precipitation for the month is 3.13 in over about 12 wet days.

October 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.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
64°F
Average low
42°F
Precipitation
3.13 in
Record high
87°FOct 15, 2022
Record low
21°FOct 31, 2006
Chance of a freeze
54%
Daylight
11 h 43 min to 10 h 15 min
Cloud cover
60%
Humidity
87%
Dew point
47°F
Wind
5.4 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
Oct 171°F44°F84°F 202232°F 201932%0%
Oct 271°F44°F86°F 202233°F 201932%0%
Oct 370°F44°F78°F 201435°F 201333%0%
Oct 470°F44°F82°F 201435°F 201333%0%
Oct 569°F44°F85°F 201435°F 201734%0%
Oct 669°F43°F86°F 202332°F 200934%0%
Oct 768°F43°F83°F 202335°F 200935%0%
Oct 868°F43°F80°F 202234°F 201235%0%
Oct 967°F43°F82°F 202231°F 201936%0%
Oct 1067°F43°F81°F 202228°F 201936%0%
Oct 1166°F42°F75°F 200629°F 201937%0%
Oct 1266°F42°F79°F 202229°F 202137%0%
Oct 1366°F42°F80°F 202234°F 201738%0%
Oct 1465°F42°F82°F 202230°F 201738%0%
Oct 1565°F42°F87°F 202232°F 200839%0%
Oct 1664°F42°F78°F 201834°F 201739%0%
Oct 1764°F41°F77°F 201834°F 201040%0%
Oct 1863°F41°F75°F 201832°F 201041%0%
Oct 1963°F41°F76°F 201433°F 200841%0%
Oct 2063°F41°F73°F 202236°F 201042%0%
Oct 2162°F41°F70°F 201835°F 200842%0%
Oct 2262°F41°F69°F 201130°F 202043%0%
Oct 2361°F41°F73°F 200732°F 202044%0%
Oct 2461°F41°F69°F 201732°F 200844%0%
Oct 2560°F40°F68°F 201928°F 202045%0%
Oct 2660°F40°F74°F 200825°F 202046%0%
Oct 2760°F40°F71°F 201727°F 202046%0%
Oct 2859°F40°F69°F 202127°F 201947%0%
Oct 2959°F40°F68°F 202225°F 202348%0%
Oct 3058°F40°F66°F 201122°F 201948%0%
Oct 3158°F40°F64°F 202521°F 200649%0%

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.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

October 1
sunrise 7:11 AM, sunset 6:54 PM
October 31
sunrise 7:49 AM, sunset 6:04 PM

Every day of October: 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.