COLLEGE OF FOOD, AGRICULTURAL,
AND ENVIRONMENTAL SCIENCES

The Ohio State Phenology Calendar

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Wooster on 7/28/2026 7:43:33 AM is 1,946 GDD

The GDD on 7/28 in previous years:


  • 2025: 1,807
  • 2024: 1,948
  • 2023: 1,631
  • 2022: 1,919
  • 2021: 1,873
  • 2020: 1,842
  • 2019: 1,816
  • 2018: 1,927
  • 2017: 1,884
  • 2016: 1,855
  • 2015: 1,748
  • 2014: 1,695
  • 2013: 1,825
  • 2012: 2,176
  • 2011: 1,882
  • 2010: 2,004
  • 2009: 1,592
  • 2008: 1,662
  • 2007: 1,770
  • 2006: 1,735
  • 20 Year GDD Average for Wooster on 7/28 - 1,830
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Denise Ellsworth
1680 Madison Ave. | Wooster, OH 44691
Phone: 330-263-3723 | ellsworth.2@osu.edu


Ashley Kulhanek
4046 Medina Road | Medina, OH 44256
Phone: 330-661-6404 | kulhanek.5@osu.edu


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