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Heppner city, Oregon

Official LSAD Designation: Heppner city • Census GEOID: 4133550 • Morrow County

Climate Normals & Weather Observations

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

Reference Weather Station: HEPPNER, OR US (ID: USC00353827) • Located 0.9 miles from community center • Elevation: 574.5 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 43.6° 27.6° 35.6° 1.32"
February 47.4° 29.2° 38.3° 1.07"
March 54.7° 33.6° 44.2° 1.36"
April 60.8° 37.8° 49.3° 1.46"
May 69.4° 44.5° 56.9° 1.71"
June 76.6° 49.5° 63.1° 1.35"
July 86.8° 55.1° 71.0° 0.31"
August 86.1° 54.7° 70.4° 0.28"
September 77.3° 48.3° 62.8° 0.43"
October 63.8° 39.5° 51.7° 1.17"
November 51.0° 32.2° 41.6° 1.37"
December 42.5° 27.2° 34.9° 1.26"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station HEPPNER, OR US (ID: USC00353827) • 0.9 miles from community center .

This is the same reference station used for monthly normals.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at HEPPNER, 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. 35.0 43.3 51.5 59.8 68.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 51.0°F 2011: Annual mean 50.3°F 2012: Annual mean 51.8°F 2013: Annual mean 50.9°F 2014: Annual mean 52.1°F 2016: Annual mean 52.4°F 2017: Annual mean 50.6°F 2018: Annual mean 51.9°F 2019: Annual mean 49.1°F 2020: Annual mean 52.2°F 2021: Annual mean 52.8°F 2022: Annual mean 50.6°F 2023: Annual mean 51.4°F 2010: Annual mean of daily highs 62.2°F 2011: Annual mean of daily highs 61.8°F 2012: Annual mean of daily highs 63.5°F 2013: Annual mean of daily highs 62.9°F 2014: Annual mean of daily highs 63.5°F 2016: Annual mean of daily highs 63.9°F 2017: Annual mean of daily highs 62.2°F 2018: Annual mean of daily highs 63.5°F 2019: Annual mean of daily highs 59.8°F 2020: Annual mean of daily highs 64.0°F 2021: Annual mean of daily highs 64.7°F 2022: Annual mean of daily highs 62.2°F 2023: Annual mean of daily highs 62.5°F 2010: Annual mean of daily lows 39.8°F 2011: Annual mean of daily lows 38.8°F 2012: Annual mean of daily lows 40.0°F 2013: Annual mean of daily lows 39.0°F 2014: Annual mean of daily lows 40.6°F 2016: Annual mean of daily lows 41.0°F 2017: Annual mean of daily lows 39.1°F 2018: Annual mean of daily lows 40.3°F 2019: Annual mean of daily lows 38.3°F 2020: Annual mean of daily lows 40.4°F 2021: Annual mean of daily lows 41.0°F 2022: Annual mean of daily lows 38.9°F 2023: Annual mean of daily lows 40.2°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 51.0 62.2 39.8
2011 50.3 61.8 38.8
2012 51.8 63.5 40.0
2013 50.9 62.9 39.0
2014 52.1 63.5 40.6
2015 Unavailable Unavailable Unavailable
2016 52.4 63.9 41.0
2017 50.6 62.2 39.1
2018 51.9 63.5 40.3
2019 49.1 59.8 38.3
2020 52.2 64.0 40.4
2021 52.8 64.7 41.0
2022 50.6 62.2 38.9
2023 51.4 62.5 40.2
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.