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Sylvanite CDP, Montana

Official LSAD Designation: Sylvanite CDP • Census GEOID: 3073165 • Lincoln County

Climate Normals & Weather Observations

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

Reference Weather Station: TROY, MT US (ID: USC00248390) • Located 15.7 miles from community center • Elevation: 588.0 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 32.7° 22.9° 27.8° 2.63"
February 39.0° 23.6° 31.3° 1.85"
March 49.7° 28.0° 38.9° 2.44"
April 59.1° 33.0° 46.0° 1.65"
May 69.8° 40.1° 54.9° 1.79"
June 75.8° 46.2° 61.0° 2.52"
July 86.7° 49.4° 68.1° 0.88"
August 86.0° 47.7° 66.8° 0.71"
September 74.9° 41.7° 58.3° 1.21"
October 56.5° 34.6° 45.6° 2.42"
November 40.6° 29.3° 34.9° 3.50"
December 32.4° 23.5° 27.9° 2.79"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station TROY, MT US (ID: USC00248390) • 15.7 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 TROY, 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. 31.0 40.0 49.0 58.0 67.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2014: Annual mean 48.3°F 2016: Annual mean 49.2°F 2018: Annual mean 47.6°F 2019: Annual mean 46.7°F 2020: Annual mean 48.7°F 2021: Annual mean 49.2°F 2014: Annual mean of daily highs 60.0°F 2016: Annual mean of daily highs 60.2°F 2018: Annual mean of daily highs 59.3°F 2019: Annual mean of daily highs 59.2°F 2020: Annual mean of daily highs 61.7°F 2021: Annual mean of daily highs 63.1°F 2014: Annual mean of daily lows 36.6°F 2016: Annual mean of daily lows 38.2°F 2018: Annual mean of daily lows 35.8°F 2019: Annual mean of daily lows 34.3°F 2020: Annual mean of daily lows 35.6°F 2021: Annual mean of daily lows 35.2°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 48.3 60.0 36.6
2015 Unavailable Unavailable Unavailable
2016 49.2 60.2 38.2
2017 Unavailable Unavailable Unavailable
2018 47.6 59.3 35.8
2019 46.7 59.2 34.3
2020 48.7 61.7 35.6
2021 49.2 63.1 35.2
2022 Unavailable Unavailable Unavailable
2023 Unavailable Unavailable Unavailable
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.