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Garrison CDP, Montana

Official LSAD Designation: Garrison CDP • Census GEOID: 3030175 • Powell County

Climate Normals & Weather Observations

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

Reference Weather Station: DEER LODGE 3 W, MT US (ID: USC00242275) • Located 10.3 miles from community center • Elevation: 1,478.3 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 33.2° 10.7° 22.0° 0.48"
February 36.0° 13.1° 24.5° 0.68"
March 44.3° 19.3° 31.8° 1.28"
April 52.9° 25.8° 39.4° 1.08"
May 62.2° 33.7° 47.9° 2.19"
June 68.5° 39.8° 54.1° 2.66"
July 79.1° 44.2° 61.6° 1.51"
August 79.4° 42.2° 60.8° 1.32"
September 69.6° 34.6° 52.1° 1.35"
October 55.4° 25.8° 40.6° 1.00"
November 40.2° 16.3° 28.3° 0.51"
December 31.3° 10.5° 20.9° 0.50"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station DEER LODGE 3 W, MT US (ID: USC00242275) • 10.3 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 DEER LODGE 3 W, 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. 21.0 31.3 41.5 51.8 62.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2020: Annual mean 40.7°F 2022: Annual mean 39.4°F 2020: Annual mean of daily highs 55.4°F 2022: Annual mean of daily highs 54.4°F 2025: Annual mean of daily highs 58.1°F 2020: Annual mean of daily lows 26.1°F 2022: Annual mean of daily lows 24.4°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 Unavailable Unavailable Unavailable
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 40.7 55.4 26.1
2021 Unavailable Unavailable Unavailable
2022 39.4 54.4 24.4
2023 Unavailable Unavailable Unavailable
2024 Unavailable Unavailable Unavailable
2025 Unavailable 58.1 Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.