Monroe city, Oregon

Official LSAD Designation: Monroe city • Census GEOID: 4149600 • Benton County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Monroe city.

Reference Weather Station: CORVALLIS 10 SSW, OR US (ID: USW00004236) • Located 7.2 miles from community center • Elevation: 95.1 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	47.2°	34.4°	40.8°	6.24"
February	50.5°	34.7°	42.6°	5.18"
March	55.4°	37.0°	46.2°	4.58"
April	59.7°	39.3°	49.5°	3.30"
May	66.7°	43.4°	55.0°	2.09"
June	73.2°	47.3°	60.2°	1.00"
July	81.8°	50.9°	66.4°	0.27"
August	82.1°	50.7°	66.4°	0.29"
September	76.7°	47.4°	62.1°	1.29"
October	64.3°	41.7°	53.0°	3.13"
November	52.1°	37.3°	44.7°	6.12"
December	45.7°	34.2°	39.9°	7.98"

2010–2025, completed calendar years only.

NOAA station CORVALLIS 10 SSW, OR US (ID: USW00004236) • 7.2 miles from community center .

This is the same reference station used for monthly normals.

Show annual mean of daily highs and lows

Annual mean Annual mean of daily highs Annual mean of daily lows

Annual temperature data table (°F)

Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year	Annual mean (°F)	Annual mean of daily highs (°F)	Annual mean of daily lows (°F)
2010	52.3	62.0	42.6
2011	50.8	60.4	41.3
2012	51.8	62.0	41.7
2013	51.5	61.8	41.3
2014	53.9	64.5	43.3
2015	54.5	65.9	43.1
2016	53.6	64.1	43.1
2017	52.1	62.9	41.4
2018	52.8	64.4	41.1
2019	51.7	62.4	41.0
2020	52.9	64.0	41.9
2021	53.5	64.8	42.2
2022	52.3	63.2	41.3
2023	Unavailable	Unavailable	Unavailable
2024	Unavailable	Unavailable	Unavailable
2025	54.0	65.2	42.8

Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.