Skip to main content

Grenville town, South Dakota

Official LSAD Designation: Grenville town • Census GEOID: 4626220 • Day County

Climate Normals & Weather Observations

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

Reference Weather Station: WAUBAY NATL WILD LIFE, SD US (ID: USC00398980) • Located 4.2 miles from community center • Elevation: 556.9 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 21.7° 3.5° 12.6° 0.60"
February 26.4° 7.0° 16.7° 0.54"
March 38.7° 19.2° 29.0° 0.84"
April 54.0° 32.8° 43.4° 1.96"
May 67.6° 46.6° 57.1° 2.93"
June 76.8° 57.6° 67.2° 3.69"
July 81.7° 62.2° 72.0° 3.79"
August 80.5° 60.8° 70.6° 2.26"
September 72.6° 52.0° 62.3° 2.39"
October 57.0° 38.4° 47.7° 2.17"
November 39.9° 23.9° 31.9° 0.69"
December 26.5° 10.5° 18.5° 0.66"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station WAUBAY NATL WILD LIFE, SD US (ID: USC00398980) • 4.2 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 WAUBAY NATL WILD LIFE, 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 36.3 44.5 52.8 61.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 42.6°F 2012: Annual mean 47.0°F 2013: Annual mean 40.7°F 2015: Annual mean 45.9°F 2019: Annual mean 40.6°F 2020: Annual mean 44.4°F 2022: Annual mean 42.0°F 2023: Annual mean 44.6°F 2010: Annual mean of daily highs 51.4°F 2011: Annual mean of daily highs 51.2°F 2012: Annual mean of daily highs 57.4°F 2013: Annual mean of daily highs 50.4°F 2014: Annual mean of daily highs 51.0°F 2015: Annual mean of daily highs 55.7°F 2017: Annual mean of daily highs 54.9°F 2019: Annual mean of daily highs 49.2°F 2020: Annual mean of daily highs 53.8°F 2022: Annual mean of daily highs 51.3°F 2023: Annual mean of daily highs 54.0°F 2024: Annual mean of daily highs 55.8°F 2010: Annual mean of daily lows 33.8°F 2012: Annual mean of daily lows 36.7°F 2013: Annual mean of daily lows 31.0°F 2015: Annual mean of daily lows 36.0°F 2019: Annual mean of daily lows 32.0°F 2020: Annual mean of daily lows 35.0°F 2022: Annual mean of daily lows 32.7°F 2023: Annual mean of daily lows 35.2°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 42.6 51.4 33.8
2011 Unavailable 51.2 Unavailable
2012 47.0 57.4 36.7
2013 40.7 50.4 31.0
2014 Unavailable 51.0 Unavailable
2015 45.9 55.7 36.0
2016 Unavailable Unavailable Unavailable
2017 Unavailable 54.9 Unavailable
2018 Unavailable Unavailable Unavailable
2019 40.6 49.2 32.0
2020 44.4 53.8 35.0
2021 Unavailable Unavailable Unavailable
2022 42.0 51.3 32.7
2023 44.6 54.0 35.2
2024 Unavailable 55.8 Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.