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Winthrop city, Iowa

Official LSAD Designation: Winthrop city • Census GEOID: 1986565 • Buchanan County

Climate Normals & Weather Observations

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

Reference Weather Station: INDEPENDENCE #1, IA US (ID: USC00134049) • Located 8.2 miles from community center • Elevation: 307.8 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 26.5° 8.0° 17.3° 0.95"
February 30.8° 11.7° 21.2° 1.36"
March 44.2° 23.9° 34.1° 2.02"
April 59.0° 35.5° 47.3° 3.59"
May 70.8° 47.8° 59.3° 4.60"
June 80.5° 59.2° 69.8° 5.66"
July 83.0° 61.8° 72.4° 4.61"
August 81.4° 59.4° 70.4° 4.27"
September 74.9° 50.9° 62.9° 3.53"
October 61.7° 38.3° 50.0° 3.03"
November 45.9° 25.6° 35.7° 2.09"
December 32.0° 14.6° 23.3° 1.66"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station STANLEY, IA US (ID: USC00137892) • 12.9 miles from community center .

This annual reference station differs from the monthly normals station (ID: USC00134049), which has no available annual mean history.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at STANLEY, 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. 28.0 37.3 46.5 55.8 65.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 46.0°F 2011: Annual mean 46.2°F 2012: Annual mean 49.7°F 2013: Annual mean 44.3°F 2014: Annual mean 42.3°F 2015: Annual mean 46.7°F 2019: Annual mean 43.8°F 2020: Annual mean 46.5°F 2022: Annual mean 44.6°F 2023: Annual mean 48.4°F 2024: Annual mean 49.5°F 2025: Annual mean 47.4°F 2010: Annual mean of daily highs 56.7°F 2011: Annual mean of daily highs 56.6°F 2012: Annual mean of daily highs 61.3°F 2013: Annual mean of daily highs 54.6°F 2014: Annual mean of daily highs 53.1°F 2015: Annual mean of daily highs 57.3°F 2019: Annual mean of daily highs 54.1°F 2020: Annual mean of daily highs 57.4°F 2021: Annual mean of daily highs 58.2°F 2022: Annual mean of daily highs 55.5°F 2023: Annual mean of daily highs 59.7°F 2024: Annual mean of daily highs 60.6°F 2025: Annual mean of daily highs 58.2°F 2010: Annual mean of daily lows 35.4°F 2011: Annual mean of daily lows 35.8°F 2012: Annual mean of daily lows 38.0°F 2013: Annual mean of daily lows 34.0°F 2014: Annual mean of daily lows 31.5°F 2015: Annual mean of daily lows 36.1°F 2019: Annual mean of daily lows 33.6°F 2020: Annual mean of daily lows 35.6°F 2022: Annual mean of daily lows 33.7°F 2023: Annual mean of daily lows 37.1°F 2024: Annual mean of daily lows 38.4°F 2025: Annual mean of daily lows 36.5°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 46.0 56.7 35.4
2011 46.2 56.6 35.8
2012 49.7 61.3 38.0
2013 44.3 54.6 34.0
2014 42.3 53.1 31.5
2015 46.7 57.3 36.1
2016 Unavailable Unavailable Unavailable
2017 Unavailable Unavailable Unavailable
2018 Unavailable Unavailable Unavailable
2019 43.8 54.1 33.6
2020 46.5 57.4 35.6
2021 Unavailable 58.2 Unavailable
2022 44.6 55.5 33.7
2023 48.4 59.7 37.1
2024 49.5 60.6 38.4
2025 47.4 58.2 36.5
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.