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Copper Harbor CDP, Michigan

Official LSAD Designation: Copper Harbor CDP • Census GEOID: 2618100 • Keweenaw County

Climate Normals & Weather Observations

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

Reference Weather Station: COPPER HARBOR FT WILKINS, MI US (ID: USC00201780) • Located 0.1 miles from community center • Elevation: 190.5 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 22.8° 11.2° 17.0° 2.24"
February 24.6° 10.1° 17.4° 1.89"
March 33.8° 17.4° 25.6° 1.70"
April 44.0° 28.1° 36.0° 2.68"
May 57.4° 38.5° 48.0° 3.55"
June 67.1° 46.4° 56.7° 3.07"
July 73.2° 54.4° 63.8° 3.02"
August 73.4° 56.3° 64.9° 2.63"
September 66.0° 50.3° 58.1° 3.71"
October 51.9° 38.9° 45.4° 3.72"
November 39.0° 27.8° 33.4° 2.60"
December 28.5° 18.2° 23.4° 2.33"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station COPPER HARBOR, MI US (ID: USW00094899) • 0.6 miles from community center .

This annual reference station differs from the monthly normals station (ID: USC00201780), which has no available annual mean history.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at COPPER HARBOR, MI 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. 32.0 37.8 43.5 49.3 55.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 45.1°F 2013: Annual mean 40.5°F 2015: Annual mean 42.8°F 2016: Annual mean 44.8°F 2018: Annual mean 41.3°F 2019: Annual mean 40.8°F 2020: Annual mean 44.0°F 2021: Annual mean 45.6°F 2022: Annual mean 42.1°F 2023: Annual mean 44.5°F 2010: Annual mean of daily highs 51.4°F 2013: Annual mean of daily highs 46.9°F 2015: Annual mean of daily highs 49.9°F 2016: Annual mean of daily highs 51.4°F 2018: Annual mean of daily highs 48.3°F 2019: Annual mean of daily highs 47.5°F 2020: Annual mean of daily highs 50.6°F 2021: Annual mean of daily highs 52.6°F 2022: Annual mean of daily highs 49.1°F 2023: Annual mean of daily highs 50.9°F 2010: Annual mean of daily lows 38.7°F 2013: Annual mean of daily lows 34.1°F 2015: Annual mean of daily lows 35.7°F 2016: Annual mean of daily lows 38.3°F 2018: Annual mean of daily lows 34.2°F 2019: Annual mean of daily lows 34.0°F 2020: Annual mean of daily lows 37.5°F 2021: Annual mean of daily lows 38.6°F 2022: Annual mean of daily lows 35.1°F 2023: Annual mean of daily lows 38.0°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 45.1 51.4 38.7
2011 Unavailable Unavailable Unavailable
2012 Unavailable Unavailable Unavailable
2013 40.5 46.9 34.1
2014 Unavailable Unavailable Unavailable
2015 42.8 49.9 35.7
2016 44.8 51.4 38.3
2017 Unavailable Unavailable Unavailable
2018 41.3 48.3 34.2
2019 40.8 47.5 34.0
2020 44.0 50.6 37.5
2021 45.6 52.6 38.6
2022 42.1 49.1 35.1
2023 44.5 50.9 38.0
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.