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Agar town, South Dakota

Official LSAD Designation: Agar town • Census GEOID: 4600460 • Sully County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Agar town.

Reference Weather Station: ONIDA 4 NW, SD US (ID: USC00396292) • Located 8.2 miles from community center • Elevation: 564.2 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 26.5° 7.4° 16.9° 0.54"
February 31.0° 10.9° 21.0° 0.79"
March 44.2° 22.3° 33.3° 0.97"
April 57.8° 33.2° 45.5° 1.96"
May 69.3° 44.9° 57.1° 3.17"
June 79.6° 55.6° 67.6° 3.63"
July 87.4° 61.3° 74.4° 2.52"
August 85.2° 58.9° 72.0° 2.51"
September 76.5° 49.4° 63.0° 1.78"
October 59.7° 35.9° 47.8° 1.93"
November 43.3° 22.6° 32.9° 0.68"
December 29.9° 11.6° 20.7° 0.59"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station ONIDA 4 NW, SD US (ID: USC00396292) • 8.2 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 ONIDA 4 NW, 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 37.5 47.0 56.5 66.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 44.8°F 2011: Annual mean 44.3°F 2012: Annual mean 48.9°F 2013: Annual mean 43.7°F 2014: Annual mean 43.2°F 2015: Annual mean 47.7°F 2016: Annual mean 48.2°F 2017: Annual mean 49.8°F 2019: Annual mean 41.9°F 2020: Annual mean 46.5°F 2022: Annual mean 45.3°F 2024: Annual mean 48.0°F 2025: Annual mean 47.3°F 2010: Annual mean of daily highs 55.5°F 2011: Annual mean of daily highs 55.3°F 2012: Annual mean of daily highs 62.3°F 2013: Annual mean of daily highs 55.1°F 2014: Annual mean of daily highs 55.3°F 2015: Annual mean of daily highs 60.4°F 2016: Annual mean of daily highs 60.6°F 2017: Annual mean of daily highs 62.1°F 2018: Annual mean of daily highs 55.7°F 2019: Annual mean of daily highs 51.8°F 2020: Annual mean of daily highs 58.4°F 2022: Annual mean of daily highs 58.4°F 2023: Annual mean of daily highs 58.4°F 2024: Annual mean of daily highs 59.9°F 2025: Annual mean of daily highs 59.8°F 2010: Annual mean of daily lows 34.1°F 2011: Annual mean of daily lows 33.3°F 2012: Annual mean of daily lows 35.6°F 2013: Annual mean of daily lows 32.2°F 2014: Annual mean of daily lows 31.2°F 2015: Annual mean of daily lows 34.9°F 2016: Annual mean of daily lows 35.8°F 2017: Annual mean of daily lows 37.5°F 2019: Annual mean of daily lows 31.9°F 2020: Annual mean of daily lows 34.7°F 2022: Annual mean of daily lows 32.2°F 2024: Annual mean of daily lows 36.1°F 2025: Annual mean of daily lows 34.9°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 44.8 55.5 34.1
2011 44.3 55.3 33.3
2012 48.9 62.3 35.6
2013 43.7 55.1 32.2
2014 43.2 55.3 31.2
2015 47.7 60.4 34.9
2016 48.2 60.6 35.8
2017 49.8 62.1 37.5
2018 Unavailable 55.7 Unavailable
2019 41.9 51.8 31.9
2020 46.5 58.4 34.7
2021 Unavailable Unavailable Unavailable
2022 45.3 58.4 32.2
2023 Unavailable 58.4 Unavailable
2024 48.0 59.9 36.1
2025 47.3 59.8 34.9
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.