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Chinook city, Montana

Official LSAD Designation: Chinook city • Census GEOID: 3014575 • Blaine County

Climate Normals & Weather Observations

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

Reference Weather Station: CHINOOK, MT US (ID: USC00241722) • Located 0.3 miles from community center • Elevation: 737.6 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 27.1° 4.2° 15.7° 0.45"
February 31.4° 6.9° 19.2° 0.37"
March 43.0° 17.7° 30.4° 0.59"
April 56.9° 29.4° 43.1° 1.04"
May 67.0° 40.0° 53.5° 2.42"
June 75.4° 49.3° 62.4° 2.86"
July 84.3° 53.6° 69.0° 1.62"
August 83.3° 51.7° 67.5° 1.14"
September 72.3° 41.2° 56.8° 0.99"
October 56.9° 28.5° 42.7° 0.88"
November 41.3° 17.0° 29.2° 0.69"
December 30.5° 7.5° 19.0° 0.39"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station CHINOOK, MT US (ID: USC00241722) • 0.3 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 CHINOOK, MT 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. 22.0 32.0 42.0 52.0 62.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 39.4°F 2011: Annual mean 41.1°F 2012: Annual mean 44.1°F 2013: Annual mean 41.8°F 2014: Annual mean 42.0°F 2017: Annual mean 43.5°F 2019: Annual mean 39.0°F 2021: Annual mean 43.6°F 2022: Annual mean 42.1°F 2010: Annual mean of daily highs 51.6°F 2011: Annual mean of daily highs 54.2°F 2012: Annual mean of daily highs 58.0°F 2013: Annual mean of daily highs 55.0°F 2014: Annual mean of daily highs 55.0°F 2017: Annual mean of daily highs 57.2°F 2019: Annual mean of daily highs 51.9°F 2021: Annual mean of daily highs 57.8°F 2022: Annual mean of daily highs 55.7°F 2010: Annual mean of daily lows 27.1°F 2011: Annual mean of daily lows 28.0°F 2012: Annual mean of daily lows 30.2°F 2013: Annual mean of daily lows 28.7°F 2014: Annual mean of daily lows 29.0°F 2017: Annual mean of daily lows 29.8°F 2019: Annual mean of daily lows 26.2°F 2021: Annual mean of daily lows 29.4°F 2022: Annual mean of daily lows 28.5°F 2023: Annual mean of daily lows 30.1°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 39.4 51.6 27.1
2011 41.1 54.2 28.0
2012 44.1 58.0 30.2
2013 41.8 55.0 28.7
2014 42.0 55.0 29.0
2015 Unavailable Unavailable Unavailable
2016 Unavailable Unavailable Unavailable
2017 43.5 57.2 29.8
2018 Unavailable Unavailable Unavailable
2019 39.0 51.9 26.2
2020 Unavailable Unavailable Unavailable
2021 43.6 57.8 29.4
2022 42.1 55.7 28.5
2023 Unavailable Unavailable 30.1
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.