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Steptoe CDP, Washington

Official LSAD Designation: Steptoe CDP • Census GEOID: 5367805 • Whitman County

Climate Normals & Weather Observations

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

Reference Weather Station: ST JOHN, WA US (ID: USC00457267) • Located 12.7 miles from community center • Elevation: 595.0 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 36.6° 28.7° 32.6° 2.05"
February 41.3° 30.1° 35.7° 1.52"
March 49.4° 34.1° 41.8° 1.90"
April 57.2° 38.2° 47.7° 1.54"
May 66.4° 44.8° 55.6° 1.56"
June 73.1° 49.7° 61.4° 1.12"
July 83.6° 54.4° 69.0° 0.43"
August 83.5° 53.3° 68.4° 0.34"
September 73.9° 46.7° 60.3° 0.56"
October 59.0° 38.6° 48.8° 1.50"
November 44.0° 33.0° 38.5° 2.15"
December 35.1° 27.9° 31.5° 2.38"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station ST JOHN, WA US (ID: USC00457267) • 12.7 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 ST JOHN, WA 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. 33.0 41.0 49.0 57.0 65.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2011: Annual mean 49.0°F 2012: Annual mean 50.4°F 2013: Annual mean 48.7°F 2014: Annual mean 50.7°F 2011: Annual mean of daily highs 60.2°F 2012: Annual mean of daily highs 62.3°F 2013: Annual mean of daily highs 60.8°F 2014: Annual mean of daily highs 62.4°F 2010: Annual mean of daily lows 38.5°F 2011: Annual mean of daily lows 37.7°F 2012: Annual mean of daily lows 38.5°F 2013: Annual mean of daily lows 36.5°F 2014: Annual mean of daily lows 39.0°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 38.5
2011 49.0 60.2 37.7
2012 50.4 62.3 38.5
2013 48.7 60.8 36.5
2014 50.7 62.4 39.0
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.