Cornelius climate

Cornelius Weather in October

NOAA 1991-2020 normals for Forest Grove, 3.4 km from Cornelius

Average highs run from 71°F on October 1 to 56°F on October 31, and lows from 45°F to 39°F. Normal precipitation for the month is 3.70 in over about 11 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 Cornelius, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
63°F
Average low
42°F
Precipitation
3.70 in
Snowfall
0.2 in
Record high
89°FOct 8, 2022
Record low
20°FOct 31, 2002
Chance of a freeze
62%
Daylight
11 h 41 min to 10 h 09 min
Cloud cover
63%
Humidity
84%
Dew point
46°F
Wind
4.7 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°F45°F86°F 201232°F 201927%0%
Oct 270°F45°F88°F 202233°F 200228%0%
Oct 370°F45°F82°F 202233°F 199928%0%
Oct 469°F44°F85°F 201433°F 199929%0%
Oct 569°F44°F85°F 201433°F 200930%0%
Oct 668°F44°F87°F 201432°F 200930%0%
Oct 768°F44°F85°F 202334°F 202131%0%
Oct 867°F43°F89°F 202233°F 201232%0%
Oct 967°F43°F87°F 202230°F 201933%0%
Oct 1066°F43°F79°F 202228°F 201933%0%
Oct 1166°F43°F76°F 200629°F 200934%0%
Oct 1265°F42°F81°F 202230°F 202135%0%
Oct 1365°F42°F87°F 202230°F 200235%0%
Oct 1464°F42°F84°F 202231°F 199936%0%
Oct 1564°F42°F86°F 202228°F 199937%0%
Oct 1663°F41°F86°F 202229°F 199937%0%
Oct 1763°F41°F77°F 201831°F 201038%0%
Oct 1862°F41°F74°F 201131°F 201039%0%
Oct 1962°F41°F77°F 202231°F 200840%0%
Oct 2061°F41°F75°F 200331°F 200140%0%
Oct 2161°F40°F80°F 200333°F 199941%0%
Oct 2260°F40°F78°F 201330°F 200842%0%
Oct 2360°F40°F73°F 201330°F 202042%0%
Oct 2459°F40°F73°F 201730°F 200243%0%
Oct 2559°F40°F68°F 200325°F 202044%0%
Oct 2658°F39°F74°F 200324°F 202045%0%
Oct 2758°F39°F74°F 201728°F 202046%0%
Oct 2858°F39°F71°F 200327°F 201946%0%
Oct 2957°F39°F66°F 201228°F 200647%0%
Oct 3057°F39°F63°F 201123°F 201948%0%
Oct 3156°F39°F63°F 201520°F 200249%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Cornelius, 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 6:52 PM
October 31
sunrise 7:51 AM, sunset 6:00 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00352997 (Forest Grove), public domain. Records: NOAA GHCN-Daily, station USW00094261, 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.