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Mendeltna CDP, Alaska

Official LSAD Designation: Mendeltna CDP • Census GEOID: 0248200 • Copper River Census Area

Climate Normals & Weather Observations

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

Reference Weather Station: LAKE SUSITNA, AK US (ID: USC00505397) • Located 21.3 miles from community center • Elevation: 723.9 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 4.8° -15.0° -5.1° 0.47"
February 16.4° -9.5° 3.5° 0.55"
March 27.0° -6.1° 10.4° 0.37"
April 42.5° 12.7° 27.6° 0.16"
May 55.7° 30.4° 43.0° 0.73"
June 66.2° 42.5° 54.3° 1.82"
July 68.8° 46.5° 57.7° 2.38"
August 63.1° 42.4° 52.8° 1.78"
September 52.8° 33.3° 43.1° 1.28"
October 35.0° 18.2° 26.6° 0.98"
November 15.8° -3.9° 6.0° 0.61"
December 5.0° -12.7° -3.8° 0.63"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station GENNALLEN KCAM, AK US (ID: USC00503304) • 39.6 miles from community center .

This annual reference station differs from the monthly normals station (ID: USC00505397), which has no available annual mean history.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at GENNALLEN KCAM, AK 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. 7.0 17.0 27.0 37.0 47.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2011: Annual mean 27.0°F 2012: Annual mean 23.0°F 2013: Annual mean 28.7°F 2014: Annual mean 28.1°F 2015: Annual mean 29.5°F 2016: Annual mean 29.6°F 2017: Annual mean 27.5°F 2018: Annual mean 28.5°F 2019: Annual mean 32.0°F 2020: Annual mean 26.3°F 2021: Annual mean 25.8°F 2022: Annual mean 29.0°F 2024: Annual mean 27.7°F 2025: Annual mean 30.0°F 2011: Annual mean of daily highs 38.8°F 2012: Annual mean of daily highs 34.9°F 2013: Annual mean of daily highs 39.9°F 2014: Annual mean of daily highs 39.1°F 2015: Annual mean of daily highs 40.8°F 2016: Annual mean of daily highs 41.2°F 2017: Annual mean of daily highs 38.9°F 2018: Annual mean of daily highs 39.8°F 2019: Annual mean of daily highs 43.4°F 2020: Annual mean of daily highs 38.3°F 2021: Annual mean of daily highs 37.3°F 2022: Annual mean of daily highs 39.9°F 2024: Annual mean of daily highs 38.7°F 2025: Annual mean of daily highs 40.8°F 2011: Annual mean of daily lows 15.1°F 2012: Annual mean of daily lows 11.1°F 2013: Annual mean of daily lows 17.5°F 2014: Annual mean of daily lows 17.0°F 2015: Annual mean of daily lows 18.1°F 2016: Annual mean of daily lows 17.9°F 2017: Annual mean of daily lows 16.2°F 2018: Annual mean of daily lows 17.3°F 2019: Annual mean of daily lows 20.6°F 2020: Annual mean of daily lows 14.3°F 2021: Annual mean of daily lows 14.2°F 2022: Annual mean of daily lows 18.2°F 2024: Annual mean of daily lows 16.6°F 2025: Annual mean of daily lows 19.2°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 27.0 38.8 15.1
2012 23.0 34.9 11.1
2013 28.7 39.9 17.5
2014 28.1 39.1 17.0
2015 29.5 40.8 18.1
2016 29.6 41.2 17.9
2017 27.5 38.9 16.2
2018 28.5 39.8 17.3
2019 32.0 43.4 20.6
2020 26.3 38.3 14.3
2021 25.8 37.3 14.2
2022 29.0 39.9 18.2
2023 Unavailable Unavailable Unavailable
2024 27.7 38.7 16.6
2025 30.0 40.8 19.2
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.