Here is your Growing Degree Day (GDD) summary ending February 28, 2022. While we have definitely had some weather - warming temperatures, accumulating snows, more warm temps and even more snow, this summary includes the months of January and February. Stay tuned for these year-to-date summaries each month in 2022.
GGD Chart, February 28, 2022
Ohio City (County)
Zip Code
GDD Unit Accumulation
Bryan (Williams)
43506
6
Toledo (Lucas)
43615
6
Sandusky (Erie)
44870
8
Elyria (Lorain)
44035
10
Burton (Geauga)
44021
11
Jefferson (Ashtabula)
44047
10
Van Wert (Van Wert)
45891
7
Findlay (Hancock)
45840
7
Medina (Medina)
44256
10
Mt. Gilead (Morrow)
43338
12
Mt. Vernon (Knox)
43050
14
Steubenville (Jefferson)
43952
19
Dayton (Montgomery)
45417
16
Springfield (Clark)
45505
14
Columbus (Franklin)
43210
16
Lancaster (Fairfield)
43130
25
Marietta (Washington)
45750
31
Cincinnati (Hamilton)
45223
30
Hillsboro (Highland)
45133
34
Ironton (Lawrence)
45638
34
GGD Species List (Common Name, Scientific Name, Phenological Event, GDD)
The list includes both plants and insects. Insects are bolded within the list.
Silver Maple, Acer saccharinum, first bloom, 34; Corneliancherry Dogwood, Cornus mas, first bloom, 40; Silver Maple, Acer saccharinum, full floom, 42; Red Maple, Acer rubrum, first bloom, 44; Speckled Alder, Alnus incaca spp.,rugosa, first bloom, 52; Northern Lights Forsythia, Forsythia x intermedia, first bloom, 58; Japanese Pieris, Pieris japonica, first bloom, 60; Red Maple, Acer rubrum, full bloom, 75; Star Magnolia, Magnolia stella, first bloom, 83; White Pine Weevil, Pissodes strobi, adult emergence, 84; Border Forsythia, Forsythia x intermedia, first bloom, 86; Eastern Tent Caterpillar, Malacosoma americanum, egg hatch, 92; Manchu Cherry, Prunus tomentosa, first bloom, 93; Northern Lights Forsythia, Forsythia x intermedia, full bloom, 94; Speckled Alder, Alnus incana, full bloom, 97; Corneliancherry Dogwood, Cornus mas, full bloom, 98; Norway Maple, Acer plantanoides, first bloom, 116; Border Forsythia, Forsythia x intermedia, full bloom, 116.....
Now that you have read this summary, what is your GDD? Check out this link https://weather.cfaes.osu.edu/gdd/, type in your Ohio zip code, and see where your location is at in this biological calendar.
More Information
OSU Growing Degree Day Website