Growing Degree Days

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​January 1 to November 30, 2025​​​​​​​​​

​Location​​
​Mod 50°F
Corn development, 
Codling moth, 
European corn borer​​
​2024 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
3639
3691
3066
3943
5886
3430
3040
4938
5994
5877
Lone Rock3320
3358
3558
5433
3018
2653
4460
5512
5479
​​Beloit
3359
3532
3087
3628
5509
3115
2741
4567
5598
5523
Sullivan
3192
3318
3442
5267
2933
2577
4352
5363
5346
Madison3240
3336
3025
3507
5341
3006
2640
4441
5459
5448
Juneau
3102
3211
3339
5143
2827
2484
4220
5229
5230
Racine3159
3404
3438
5294
2961
2607
4398
5395
5406
Waukesha3048
3224
3305
5105
2813
2466
4214
5220
5249
Milwaukee3095
3375
2988
3372
5201
2897
2547
4307
5299
5317
Hartford
3027
3127
2722
3274
5056
2778
2440
4165
5161
5181
Appleton2924
3131
2812
3176
4930
2710
2375
4054
5036
5073
Green Bay2949
3116
2707
3203
4968
2737
2402
4090
5062
5076
Big Flats​2952
3085
3160
4934
2646
2315
3991
4998
5051
Ha​ncock​2841
2942
2783
3052
4795
2553
2229
3864
4856
4917
P​t Edwards2882
2943
3095
4843
2596
2269
3915
4906
4954
La Crosse3309
3309
3295
3569
5421
3058
2695
4487
5530
5526
Eau Claire3071
3133
2876
3317
5099
2819
2482
4197
5196
5208
Cumberland
2630
2677
2570
2845
4521
2374
2058
3648
4612
4735
Bayfield2294
2257
2448
3999
1995
1705
3138
4048
4195
Wausau2518
2567
2627
2702
4337
2233
1927
3457
4408
4549
Medford2466
2503
2413
2642
4274
2176
1871
3399
4346
4502
​Crivitz
2618
2748
2775
4457
2274
1968
3507
4488
4571
Crandon2220
2316
2378
3931
1931
1638
3078
3989
4177
​Key​ to GDD calculation methods: Modified B50°F; 2024 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.   ​ ​ ​ ​ ​ ​ ​ ​ ​ 

​​​​​​​​​​​​​<< Back to main Pest Survey page​​​
​​​​
​
​



​
​