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Greenville city, Iowa

Official LSAD Designation: Greenville city • Census GEOID: 1932970 • Clay County

Climate Normals & Weather Observations

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

Reference Weather Station: SIOUX RAPIDS 4 E, IA US (ID: USC00137726) • Located 9.5 miles from community center • Elevation: 432.8 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 25.3° 8.2° 16.7° 0.62"
February 29.9° 12.8° 21.4° 0.83"
March 43.1° 24.7° 33.9° 1.76"
April 58.2° 36.0° 47.1° 3.58"
May 69.9° 48.3° 59.1° 4.19"
June 79.9° 59.1° 69.5° 5.05"
July 81.9° 62.2° 72.1° 3.29"
August 79.2° 59.3° 69.2° 4.41"
September 73.6° 51.1° 62.4° 3.39"
October 60.5° 38.5° 49.5° 2.51"
November 43.9° 25.1° 34.5° 1.42"
December 29.8° 14.0° 21.9° 0.94"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station SIOUX RAPIDS 4 E, IA US (ID: USC00137726) • 9.5 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 SIOUX RAPIDS 4 E, IA 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. 29.0 37.8 46.5 55.3 64.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 46.4°F 2011: Annual mean 46.6°F 2014: Annual mean 43.8°F 2015: Annual mean 47.5°F 2017: Annual mean 48.3°F 2018: Annual mean 45.4°F 2019: Annual mean 44.7°F 2020: Annual mean 47.6°F 2021: Annual mean 47.5°F 2022: Annual mean 45.0°F 2023: Annual mean 47.7°F 2024: Annual mean 49.2°F 2025: Annual mean 47.5°F 2010: Annual mean of daily highs 56.9°F 2011: Annual mean of daily highs 57.3°F 2013: Annual mean of daily highs 55.0°F 2014: Annual mean of daily highs 54.2°F 2015: Annual mean of daily highs 57.5°F 2016: Annual mean of daily highs 58.5°F 2017: Annual mean of daily highs 58.2°F 2018: Annual mean of daily highs 54.6°F 2019: Annual mean of daily highs 53.8°F 2020: Annual mean of daily highs 58.2°F 2021: Annual mean of daily highs 58.9°F 2022: Annual mean of daily highs 57.3°F 2023: Annual mean of daily highs 59.2°F 2024: Annual mean of daily highs 60.8°F 2025: Annual mean of daily highs 59.4°F 2010: Annual mean of daily lows 35.9°F 2011: Annual mean of daily lows 35.9°F 2014: Annual mean of daily lows 33.4°F 2015: Annual mean of daily lows 37.5°F 2017: Annual mean of daily lows 38.5°F 2018: Annual mean of daily lows 36.2°F 2019: Annual mean of daily lows 35.7°F 2020: Annual mean of daily lows 37.0°F 2021: Annual mean of daily lows 36.1°F 2022: Annual mean of daily lows 32.8°F 2023: Annual mean of daily lows 36.2°F 2024: Annual mean of daily lows 37.6°F 2025: Annual mean of daily lows 35.7°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 46.4 56.9 35.9
2011 46.6 57.3 35.9
2012 Unavailable Unavailable Unavailable
2013 Unavailable 55.0 Unavailable
2014 43.8 54.2 33.4
2015 47.5 57.5 37.5
2016 Unavailable 58.5 Unavailable
2017 48.3 58.2 38.5
2018 45.4 54.6 36.2
2019 44.7 53.8 35.7
2020 47.6 58.2 37.0
2021 47.5 58.9 36.1
2022 45.0 57.3 32.8
2023 47.7 59.2 36.2
2024 49.2 60.8 37.6
2025 47.5 59.4 35.7
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.