COLLEGE OF FOOD, AGRICULTURAL,
AND ENVIRONMENTAL SCIENCES

The Ohio State Phenology Calendar

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Wooster on 9/7/2026 5:10:55 PM is 2,767 GDD

The GDD on 9/7 in previous years:


  • 2025: 2,492
  • 2024: 2,773
  • 2023: 2,255
  • 2022: 2,795
  • 2021: 2,798
  • 2020: 2,713
  • 2019: 2,626
  • 2018: 2,849
  • 2017: 2,595
  • 2016: 2,860
  • 2015: 2,605
  • 2014: 2,510
  • 2013: 2,578
  • 2012: 3,059
  • 2011: 2,754
  • 2010: 2,917
  • 2009: 2,371
  • 2008: 2,444
  • 2007: 2,697
  • 2006: 2,590
  • 20 Year GDD Average for Wooster on 9/7 - 2,664
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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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