Growing Degree Days

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​January 1 to November 20, 2024​​​​​​​​​

​Location​​
​Mod 50°F
Corn development, 
Codling moth, 
European corn borer​​
​2023 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
​3691
3521
3060
4006
5989
3462
3054
5053
6117
6044
Lone Rock3358
3250
3599
5531
3037
2648
4542
5631
5639
​​Beloit
3532
3278
3079
3832
5786
3302
2901
4841
5901
5829
Sullivan
3318
3097
3592
5489
3069
2678
4561
5614
5608
Madison
3336
3221
3019
3629
5531
3111
2718
4626
5670
5673
Juneau
3211
3014
3469
5343
2941
2554
4418
5465
5491
Racine3404
3069
3717
5634
3205
2800
4760
5783
5789
Waukesha3224
3009

3505
5386
2987
2592
4491
5530
5558
Milwaukee3375
3161
2980
3681
5589
3174
2771
4713
5729
5715
Hartford
3127
2935
2717
3395
5251
2884
2498
4352
5384
5418
Appleton3131
2967
2808
3407
5262
2897
2514
4369
5406
5446
Green Bay3116
2923
2704
3385
5238
2867
2489
4336
5370
5392
Big Flats​
3085
2949
3294
5176
2739
2370
4172
5255
5330
Ha​ncock​2942
2842
2779
3150
4998
2609
2241
4020
5082
5176
P​t Edwards2943
2821
3150
5008
2605
2245
4024
5092
5187
La Crosse3309
3272
3290
3584
5501
3055
2670
4553
5629
5673
Eau Claire3133
3109
2873
3383
5248
2861
2492
4315
5363
5414
Cumberland
2677
2611
2568
2883
4644
2374
2029
3747
4756
4903
Bayfield2557
2149

2403
4048
1911
1604
3158
4132
4319
Wausau2567
2474
2625
2754
4521
2236
1893
3589
4610
4782
Medford2503
2396
2411
2670
4416
2149
1810
3489
4504
4697
Crivitz2748
2571
2890
4692
2327
1987
3679
4737
4824
Crandon2316
2225
2471
4158
1962
1642
3239
4229
4440​
​Key​ to GDD calculation methods: Modified B50°F; 2023 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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