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Harper CDP, Oregon

Official LSAD Designation: Harper CDP • Census GEOID: 4132400 • Malheur County

Climate Normals & Weather Observations

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

Reference Weather Station: WESTFALL, OR US (ID: USC00359176) • Located 10.3 miles from community center • Elevation: 926.6 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 38.2° 20.9° 29.6° 1.16"
February 44.9° 24.4° 34.6° 0.88"
March 55.8° 29.8° 42.8° 0.86"
April 63.7° 34.1° 48.9° 0.88"
May 72.8° 42.5° 57.6° 1.14"
June 80.7° 49.7° 65.2° 0.74"
July 91.8° 57.4° 74.6° 0.44"
August 90.2° 54.9° 72.6° 0.45"
September 80.4° 45.3° 62.9° 0.32"
October 65.4° 33.7° 49.6° 0.71"
November 48.2° 25.9° 37.0° 0.97"
December 37.9° 21.1° 29.5° 1.43"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station VALE, OR US (ID: USC00358797) • 20.9 miles from community center .

This annual reference station differs from the monthly normals station (ID: USC00359176), which has no available annual mean history.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at VALE, OR US Year is the horizontal axis. Annual mean temperature in degrees Fahrenheit is the vertical axis. Dots show recorded years; lines connect consecutive available years only. Missing years are gaps, with no interpolation. Optional dashed lines show annual mean of daily highs and lows. Exact values appear in the data table below. 37.0 43.8 50.5 57.3 64.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2011: Annual mean 50.7°F 2011: Annual mean of daily highs 61.5°F 2011: Annual mean of daily lows 39.8°F

Source: NOAA NCEI Global Summary of the Year.

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 Unavailable Unavailable Unavailable
2011 50.7 61.5 39.8
2012 Unavailable Unavailable Unavailable
2013 Unavailable Unavailable Unavailable
2014 Unavailable Unavailable Unavailable
2015 Unavailable Unavailable Unavailable
2016 Unavailable Unavailable Unavailable
2017 Unavailable Unavailable Unavailable
2018 Unavailable Unavailable Unavailable
2019 Unavailable Unavailable Unavailable
2020 Unavailable Unavailable Unavailable
2021 Unavailable Unavailable Unavailable
2022 Unavailable Unavailable Unavailable
2023 Unavailable Unavailable Unavailable
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.