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Custer city, South Dakota

Official LSAD Designation: Custer city • Census GEOID: 4615140 • Custer County

Climate Normals & Weather Observations

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

Reference Weather Station: CUSTER, SD US (ID: USC00392087) • Located 0.8 miles from community center • Elevation: 1,670.3 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 37.1° 16.2° 26.6° 0.36"
February 37.2° 16.1° 26.6° 0.70"
March 45.6° 24.0° 34.8° 0.92"
April 51.3° 30.5° 40.9° 2.24"
May 61.2° 40.5° 50.8° 3.53"
June 72.3° 49.6° 61.0° 3.43"
July 79.7° 56.3° 68.0° 3.16"
August 78.7° 54.6° 66.7° 2.43"
September 70.9° 46.0° 58.5° 1.53"
October 55.7° 33.7° 44.7° 1.45"
November 44.9° 23.7° 34.3° 0.55"
December 36.5° 16.6° 26.5° 0.36"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station CUSTER, SD US (ID: USC00392087) • 0.8 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 CUSTER, SD 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. 28.0 36.5 45.0 53.5 62.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 44.5°F 2012: Annual mean 46.9°F 2015: Annual mean 46.2°F 2016: Annual mean 47.0°F 2017: Annual mean 45.6°F 2020: Annual mean 43.2°F 2021: Annual mean 43.8°F 2022: Annual mean 43.2°F 2023: Annual mean 42.8°F 2010: Annual mean of daily highs 55.8°F 2012: Annual mean of daily highs 58.9°F 2015: Annual mean of daily highs 57.3°F 2016: Annual mean of daily highs 58.5°F 2017: Annual mean of daily highs 56.5°F 2020: Annual mean of daily highs 54.2°F 2021: Annual mean of daily highs 54.5°F 2022: Annual mean of daily highs 55.0°F 2023: Annual mean of daily highs 54.4°F 2010: Annual mean of daily lows 33.2°F 2012: Annual mean of daily lows 34.9°F 2015: Annual mean of daily lows 35.1°F 2016: Annual mean of daily lows 35.6°F 2017: Annual mean of daily lows 34.6°F 2020: Annual mean of daily lows 32.2°F 2021: Annual mean of daily lows 33.1°F 2022: Annual mean of daily lows 31.4°F 2023: Annual mean of daily lows 31.3°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 44.5 55.8 33.2
2011 Unavailable Unavailable Unavailable
2012 46.9 58.9 34.9
2013 Unavailable Unavailable Unavailable
2014 Unavailable Unavailable Unavailable
2015 46.2 57.3 35.1
2016 47.0 58.5 35.6
2017 45.6 56.5 34.6
2018 Unavailable Unavailable Unavailable
2019 Unavailable Unavailable Unavailable
2020 43.2 54.2 32.2
2021 43.8 54.5 33.1
2022 43.2 55.0 31.4
2023 42.8 54.4 31.3
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.