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Mammoth CDP, Wyoming

Official LSAD Designation: Mammoth CDP • Census GEOID: 5649775 • Park County

Climate Normals & Weather Observations

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

Reference Weather Station: YELLOWSTONE PARK MAMMOTH, WY US (ID: USC00489905) • Located 0.3 miles from community center • Elevation: 1,888.2 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 31.4° 11.9° 21.7° 0.91"
February 34.2° 12.3° 23.3° 0.79"
March 41.9° 19.1° 30.5° 1.09"
April 49.7° 26.3° 38.0° 1.40"
May 59.6° 34.6° 47.1° 1.82"
June 69.5° 42.0° 55.8° 1.86"
July 80.8° 48.3° 64.6° 1.27"
August 79.8° 46.5° 63.1° 1.05"
September 68.8° 39.0° 53.9° 1.21"
October 53.6° 28.9° 41.3° 1.34"
November 39.4° 19.2° 29.3° 1.15"
December 30.3° 11.9° 21.1° 0.91"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station YELLOWSTONE PARK MAMMOTH, WY US (ID: USC00489905) • 0.3 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 YELLOWSTONE PARK MAMMOTH, WY 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. 22.0 31.3 40.5 49.8 59.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 41.1°F 2011: Annual mean 40.2°F 2012: Annual mean 43.3°F 2013: Annual mean 41.1°F 2014: Annual mean 41.5°F 2015: Annual mean 43.7°F 2016: Annual mean 44.1°F 2017: Annual mean 41.9°F 2018: Annual mean 41.0°F 2020: Annual mean 41.3°F 2022: Annual mean 39.3°F 2024: Annual mean 42.5°F 2010: Annual mean of daily highs 52.8°F 2011: Annual mean of daily highs 51.8°F 2012: Annual mean of daily highs 55.4°F 2013: Annual mean of daily highs 53.0°F 2014: Annual mean of daily highs 53.2°F 2015: Annual mean of daily highs 55.7°F 2016: Annual mean of daily highs 55.9°F 2017: Annual mean of daily highs 54.0°F 2018: Annual mean of daily highs 53.8°F 2020: Annual mean of daily highs 54.0°F 2022: Annual mean of daily highs 52.8°F 2024: Annual mean of daily highs 55.9°F 2010: Annual mean of daily lows 29.3°F 2011: Annual mean of daily lows 28.6°F 2012: Annual mean of daily lows 31.0°F 2013: Annual mean of daily lows 29.3°F 2014: Annual mean of daily lows 29.7°F 2015: Annual mean of daily lows 31.7°F 2016: Annual mean of daily lows 32.3°F 2017: Annual mean of daily lows 29.7°F 2018: Annual mean of daily lows 28.2°F 2020: Annual mean of daily lows 28.5°F 2022: Annual mean of daily lows 25.7°F 2024: Annual mean of daily lows 29.0°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 41.1 52.8 29.3
2011 40.2 51.8 28.6
2012 43.3 55.4 31.0
2013 41.1 53.0 29.3
2014 41.5 53.2 29.7
2015 43.7 55.7 31.7
2016 44.1 55.9 32.3
2017 41.9 54.0 29.7
2018 41.0 53.8 28.2
2019 Unavailable Unavailable Unavailable
2020 41.3 54.0 28.5
2021 Unavailable Unavailable Unavailable
2022 39.3 52.8 25.7
2023 Unavailable Unavailable Unavailable
2024 42.5 55.9 29.0
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.