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Chester town, Montana

Official LSAD Designation: Chester town • Census GEOID: 3014200 • Liberty County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Chester town.

Reference Weather Station: CHESTER, MT US (ID: USC00241692) • Located 0.2 miles from community center • Elevation: 954.6 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 28.7° 2.6° 15.7° 0.54"
February 33.0° 6.2° 19.6° 0.45"
March 44.1° 16.6° 30.4° 0.59"
April 55.5° 27.5° 41.5° 1.10"
May 65.8° 38.2° 52.0° 1.68"
June 72.7° 46.2° 59.5° 2.76"
July 82.5° 51.7° 67.1° 1.19"
August 82.0° 49.7° 65.8° 1.09"
September 71.0° 40.5° 55.7° 1.00"
October 56.8° 27.3° 42.1° 0.74"
November 41.1° 15.2° 28.2° 0.58"
December 31.6° 5.6° 18.6° 0.56"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station CHESTER, MT US (ID: USC00241692) • 0.2 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 CHESTER, 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. 23.0 32.8 42.5 52.3 62.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 40.1°F 2011: Annual mean 40.8°F 2012: Annual mean 43.5°F 2014: Annual mean 41.2°F 2022: Annual mean 41.9°F 2024: Annual mean 44.8°F 2025: Annual mean 43.3°F 2010: Annual mean of daily highs 53.5°F 2011: Annual mean of daily highs 54.2°F 2012: Annual mean of daily highs 57.7°F 2014: Annual mean of daily highs 54.7°F 2022: Annual mean of daily highs 55.9°F 2024: Annual mean of daily highs 58.6°F 2025: Annual mean of daily highs 57.0°F 2010: Annual mean of daily lows 26.7°F 2011: Annual mean of daily lows 27.4°F 2012: Annual mean of daily lows 29.3°F 2014: Annual mean of daily lows 27.8°F 2022: Annual mean of daily lows 27.8°F 2024: Annual mean of daily lows 31.0°F 2025: Annual mean of daily lows 29.6°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 40.1 53.5 26.7
2011 40.8 54.2 27.4
2012 43.5 57.7 29.3
2013 Unavailable Unavailable Unavailable
2014 41.2 54.7 27.8
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 41.9 55.9 27.8
2023 Unavailable Unavailable Unavailable
2024 44.8 58.6 31.0
2025 43.3 57.0 29.6
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.