COLLEGE OF FOOD, AGRICULTURAL,
AND ENVIRONMENTAL SCIENCES

The Ohio State Phenology Calendar

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Wooster on 4/28/2026 12:02:10 AM is 454 GDD

The GDD on 4/28 in previous years:


  • 2025: 270
  • 2024: 284
  • 2023: 241
  • 2022: 217
  • 2021: 271
  • 2020: 169
  • 2019: 204
  • 2018: 146
  • 2017: 360
  • 2016: 255
  • 2015: 141
  • 2014: 146
  • 2013: 171
  • 2012: 329
  • 2011: 170
  • 2010: 257
  • 2009: 236
  • 2008: 224
  • 2007: 231
  • 2006: 264
  • 20 Year GDD Average for Wooster on 4/28 - 229
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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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