Growing Degree Days, Part 3

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Last month, a BYGL Alert was written as an intro or refresher to growing degree days followed by a second alert, Growing Degree Days (GDD) – Part 2, (March 16, 2020), https://bygl.osu.edu/index.php/node/1455 . And ealier this week, Joe Boggs authored a BYGL Alert, Observations on Phenology (April 13, 2020), https://bygl.osu.edu/node/1504 highlighting the sequence of plant bloom, insect activity and optimal timing for pest management. 

 

Here is a look at GDD accumulations across the state  as of April 16, 2020. While I couldn’t do every Ohio zip code – but you can easily do your own – this gives you a taste of where others are at in Ohio.

 

Toledo (43615) - 89 GDD

Cleveland (44120) - 91 GDD

Canfield (44404) - 86 GDD

Athens (45701) - 230 GDD

Ironton (45638) - 251 GDD

Cincinnati (45223) - 241 GDD

Lima (45804) - 108 GDD

Mansfield (44906) - 135 GDD

Columbus (43210) - 178 GDD

Chillicothe (45601) - 242 GDD

 

Once you have your own GDD, you can click on the ‘summary’ tab and it will provide the last 6 years of GDD accumulations on that same date. I used the zip code of the office in Toledo as an example. 

 

Toledo (43615) – this year, plus 6 past years

 

2020, April 16 - 89 GDD

2019, April 16 - 93 GDD                          

2018, April 16 - 83 GDD

2017, April 16 - 219 GDD

2016, April 16 - 137 GDD

2015, April 16 - 84 GDD

2014, April 16 - 80 GDD

 

Just as you can change the zip code on the website, you can also manipulate the date if you would like to explore what was the GDD on a specific date in the past. If you have any questions, or need additional guidance to navigate the website if you are a newbie, send an email to stone.91@osu.edu and in the subject line include: GDD