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Heron CDP, Montana

Official LSAD Designation: Heron CDP • Census GEOID: 3035875 • Sanders County

Climate Normals & Weather Observations

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

Reference Weather Station: HERON 2 NW, MT US (ID: USC00244084) • Located 1.5 miles from community center • Elevation: 682.8 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 33.0° 23.1° 28.0° 4.51"
February 37.5° 23.4° 30.5° 2.92"
March 46.5° 26.9° 36.7° 3.26"
April 56.6° 31.5° 44.0° 2.72"
May 66.9° 38.8° 52.9° 2.76"
June 72.5° 44.8° 58.6° 2.99"
July 81.8° 47.2° 64.5° 1.12"
August 81.8° 45.9° 63.8° 0.89"
September 70.9° 40.1° 55.5° 1.62"
October 54.6° 33.7° 44.1° 3.11"
November 40.4° 29.1° 34.7° 4.14"
December 32.3° 23.0° 27.7° 4.19"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station HERON 2 NW, MT US (ID: USC00244084) • 1.5 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 HERON 2 NW, 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. 33.0 40.3 47.5 54.8 62.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2023: Annual mean 47.0°F 2024: Annual mean 46.8°F 2025: Annual mean 47.9°F 2023: Annual mean of daily highs 57.8°F 2024: Annual mean of daily highs 57.3°F 2025: Annual mean of daily highs 59.1°F 2023: Annual mean of daily lows 36.1°F 2024: Annual mean of daily lows 36.3°F 2025: Annual mean of daily lows 36.7°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 Unavailable Unavailable Unavailable
2021 Unavailable Unavailable Unavailable
2022 Unavailable Unavailable Unavailable
2023 47.0 57.8 36.1
2024 46.8 57.3 36.3
2025 47.9 59.1 36.7
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.