COLLEGE OF FOOD, AGRICULTURAL,
AND ENVIRONMENTAL SCIENCES

The Ohio State Phenology Calendar

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Wooster on 8/28/2026 3:39:46 PM is 2,555 GDD

The GDD on 8/28 in previous years:


  • 2025: 2,391
  • 2024: 2,603
  • 2023: 2,087
  • 2022: 2,585
  • 2021: 2,600
  • 2020: 2,521
  • 2019: 2,464
  • 2018: 2,578
  • 2017: 2,471
  • 2016: 2,649
  • 2015: 2,355
  • 2014: 2,292
  • 2013: 2,391
  • 2012: 2,825
  • 2011: 2,558
  • 2010: 2,709
  • 2009: 2,244
  • 2008: 2,243
  • 2007: 2,492
  • 2006: 2,446
  • 20 Year GDD Average for Wooster on 8/28 - 2,475
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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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