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Flat Willow Colony CDP, Montana

Official LSAD Designation: Flat Willow Colony CDP • Census GEOID: 3026733 • Musselshell County

Climate Normals & Weather Observations

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

Reference Weather Station: FLATWILLOW 4 ENE, MT US (ID: USC00243013) • Located 8.6 miles from community center • Elevation: 1,003.4 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 35.5° 14.4° 25.0° 0.48"
February 38.3° 16.0° 27.2° 0.45"
March 48.4° 24.3° 36.3° 0.58"
April 58.0° 31.6° 44.8° 1.41"
May 67.0° 40.8° 53.9° 2.83"
June 75.7° 49.6° 62.7° 2.72"
July 85.8° 55.1° 70.4° 1.27"
August 85.6° 53.6° 69.6° 1.14"
September 74.6° 44.9° 59.8° 1.17"
October 59.7° 34.7° 47.2° 1.16"
November 46.1° 23.9° 35.0° 0.50"
December 37.0° 15.5° 26.2° 0.48"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station FLATWILLOW 4 ENE, MT US (ID: USC00243013) • 8.6 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 FLATWILLOW 4 ENE, 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. 28.0 37.3 46.5 55.8 65.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 46.4°F 2015: Annual mean 48.7°F 2016: Annual mean 48.8°F 2017: Annual mean 47.2°F 2018: Annual mean 44.4°F 2020: Annual mean 47.5°F 2022: Annual mean 45.7°F 2024: Annual mean 48.0°F 2025: Annual mean 47.5°F 2010: Annual mean of daily highs 60.5°F 2015: Annual mean of daily highs 61.5°F 2016: Annual mean of daily highs 61.8°F 2017: Annual mean of daily highs 59.6°F 2018: Annual mean of daily highs 56.7°F 2020: Annual mean of daily highs 61.3°F 2022: Annual mean of daily highs 59.5°F 2024: Annual mean of daily highs 61.2°F 2025: Annual mean of daily highs 60.2°F 2010: Annual mean of daily lows 32.3°F 2015: Annual mean of daily lows 35.9°F 2016: Annual mean of daily lows 35.9°F 2017: Annual mean of daily lows 34.7°F 2018: Annual mean of daily lows 32.2°F 2020: Annual mean of daily lows 33.8°F 2022: Annual mean of daily lows 31.9°F 2024: Annual mean of daily lows 34.7°F 2025: Annual mean of daily lows 34.8°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 46.4 60.5 32.3
2011 Unavailable Unavailable Unavailable
2012 Unavailable Unavailable Unavailable
2013 Unavailable Unavailable Unavailable
2014 Unavailable Unavailable Unavailable
2015 48.7 61.5 35.9
2016 48.8 61.8 35.9
2017 47.2 59.6 34.7
2018 44.4 56.7 32.2
2019 Unavailable Unavailable Unavailable
2020 47.5 61.3 33.8
2021 Unavailable Unavailable Unavailable
2022 45.7 59.5 31.9
2023 Unavailable Unavailable Unavailable
2024 48.0 61.2 34.7
2025 47.5 60.2 34.8
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.