Growing Degree Days

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​January 1 to November 22, 2022​​​​​​​​​

​Location​​
​Mod 50°F
Corn development, 
Codling moth, 
European corn borer​​
​2021 GDDs
Mod base 50F
​30-yr avg.

1991-2020


​Sine B48
Alfalfa weevil
​Mod B40
Onion maggot
​Simple B50
Flea beetles, Imported cabbageworm,​ Squash vine borer
​Simple B52
Colorado potato beetle, Corn rootworm adults
​​Simple B43
Cabbage maggot
​Sine B39
Seedcorn maggot
​​Mod B38
​Western bean cutworm
Dubuque IA
3413


3709
5402
3255
2896
4641
5555
5438
Lone Rock
3023
3270
4916
2796
2453
4128
5045
5001
Beloit
3192
3470
5148
3005
2651
4383
5298
5226
Sullivan
3004
3260
4887
2802
2454
4130
5032
5000
Madison
3059

3330
4972
2881
2532
4216
5121
5094
Juneau
2883
3135
4736
2680
2338
3986
4875
4874
Racine3057
3334
5000
2892
2546
4247
5159
5146
Waukesha
2939
3199
4816
2752
2407
4074
4971
4957
Milwaukee
3091
3370
4998
2944
2601
4267
5157
5102
Hartford
2828
3082
4673
2635
2296
3940
4822
4836
Appleton
2849
3118
4683
2692
2356
3992
4844
4842
Green Bay
2878


3143
4709
2709
2374
4013
4868
4843
Big Flats
2808

3034
4607
2568
2245
3838
4718
4711
Ha​ncock
2700


2923
4471
2466
2147
3719
4586
4588
P​t Edwards
2740
2965
4503
2515
2192
3772
4629
4620
La Crosse3088


3356
4967
2907
2564
4234
5115
5087
Eau Claire2915
3170
4724
2729
2402
4011
4861
4840
Cumberland
2519
2736
4233
2308
1998
3525
4359
4432
Bayfield
2143
2295
3712
1864
1567
3006
3812
3940
Wausau2434
2634
4118
2194
1884
3405
4236
4314
Medford
2246
2415
3884
1971
1667
3154
3986
4130
Crivitz2529

2700
4220
2222
1915
3449
4316
4335
Crandon
​2205
2380
3826
1947
1650
3120
3933
4053​
​Key​ to GDD calculation methods: Modified B50°F; 2020 Modified B50°F; 30-Year Average 1991-2020; Sine B48°F; Modified B40°F; Simple B50​​°F; Simple B52°F; Simple B43°F, Sine B39°F; Modified B38°F.   ​ ​ ​ ​ ​ ​ ​ ​ ​ 

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