Riverside CDP, Oregon

Official LSAD Designation: Riverside CDP • Census GEOID: 4162412 • Umatilla County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Riverside CDP.

Reference Weather Station: PENDLETON WFO, OR US (ID: USC00356550) • Located 5.7 miles from community center • Elevation: 460.2 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	42.2°	28.2°	35.2°	1.54"
February	47.2°	30.0°	38.6°	1.15"
March	55.8°	34.9°	45.3°	1.38"
April	62.9°	39.7°	51.3°	1.27"
May	72.2°	46.4°	59.3°	1.50"
June	79.1°	52.2°	65.6°	1.11"
July	89.6°	58.6°	74.1°	0.30"
August	88.6°	58.0°	73.3°	0.30"
September	79.2°	50.4°	64.8°	0.56"
October	64.6°	41.2°	52.9°	1.11"
November	50.0°	32.9°	41.5°	1.41"
December	41.0°	28.0°	34.5°	1.50"

2010–2025, completed calendar years only.

NOAA station PENDLETON WFO, OR US (ID: USC00356550) • 5.7 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	51.8	62.4	41.2
2011	50.3	61.1	39.4
2012	52.8	63.9	41.7
2013	52.6	63.8	41.4
2014	53.9	64.9	43.0
2015	Unavailable	Unavailable	Unavailable
2016	54.8	65.7	43.9
2017	52.3	63.0	41.5
2018	54.1	65.1	43.1
2019	51.3	61.7	40.9
2020	54.6	66.1	43.1
2021	55.2	66.8	43.6
2022	52.0	62.8	41.3
2023	53.5	64.0	43.0
2024	Unavailable	64.5	Unavailable
2025	Unavailable	66.3	Unavailable

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