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Ketchum city, Idaho

Official LSAD Designation: Ketchum city • Census GEOID: 1643030 • Blaine County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Ketchum city.

Reference Weather Station: KETCHUM RS, ID US (ID: USC00104845) • Located 0.7 miles from community center • Elevation: 1,795.3 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 31.3° 8.0° 19.6° 2.25"
February 35.0° 11.1° 23.1° 1.88"
March 42.6° 18.7° 30.6° 1.76"
April 51.9° 26.9° 39.4° 1.17"
May 61.6° 34.7° 48.2° 1.78"
June 69.7° 39.9° 54.8° 1.26"
July 80.0° 45.1° 62.6° 0.55"
August 78.7° 43.5° 61.1° 0.50"
September 69.0° 36.1° 52.6° 1.01"
October 55.9° 27.7° 41.8° 1.40"
November 41.2° 17.4° 29.3° 1.21"
December 30.3° 9.2° 19.7° 2.57"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station KETCHUM RS, ID US (ID: USC00104845) • 0.7 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 KETCHUM RS, ID 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 38.9°F 2017: Annual mean 40.9°F 2019: Annual mean 38.6°F 2021: Annual mean 40.7°F 2024: Annual mean 40.7°F 2010: Annual mean of daily highs 52.1°F 2012: Annual mean of daily highs 55.3°F 2017: Annual mean of daily highs 53.8°F 2019: Annual mean of daily highs 51.7°F 2021: Annual mean of daily highs 55.3°F 2024: Annual mean of daily highs 55.8°F 2010: Annual mean of daily lows 25.7°F 2014: Annual mean of daily lows 30.2°F 2017: Annual mean of daily lows 28.1°F 2019: Annual mean of daily lows 25.4°F 2021: Annual mean of daily lows 26.1°F 2024: Annual mean of daily lows 25.6°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 38.9 52.1 25.7
2011 Unavailable Unavailable Unavailable
2012 Unavailable 55.3 Unavailable
2013 Unavailable Unavailable Unavailable
2014 Unavailable Unavailable 30.2
2015 Unavailable Unavailable Unavailable
2016 Unavailable Unavailable Unavailable
2017 40.9 53.8 28.1
2018 Unavailable Unavailable Unavailable
2019 38.6 51.7 25.4
2020 Unavailable Unavailable Unavailable
2021 40.7 55.3 26.1
2022 Unavailable Unavailable Unavailable
2023 Unavailable Unavailable Unavailable
2024 40.7 55.8 25.6
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.