COLLEGE OF FOOD, AGRICULTURAL,
AND ENVIRONMENTAL SCIENCES

The Ohio State Phenology Calendar

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Wooster on 8/29/2025 6:07:45 AM is 2,367 GDD

The GDD on 8/29 in previous years:


  • 2024: 2,629
  • 2023: 2,089
  • 2022: 2,613
  • 2021: 2,628
  • 2020: 2,544
  • 2019: 2,479
  • 2018: 2,607
  • 2017: 2,488
  • 2016: 2,674
  • 2015: 2,374
  • 2014: 2,308
  • 2013: 2,417
  • 2012: 2,842
  • 2011: 2,573
  • 2010: 2,731
  • 2009: 2,261
  • 2008: 2,266
  • 2007: 2,517
  • 2006: 2,466
  • 2005: 2,583
  • 20 Year GDD Average for Wooster on 8/29 - 2,504
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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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