Growing Degree Days

​​​​​​​​​​​​​​​​​​​​January 1 to June 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
1025
1168
957
1124
1770
962
844
1450
1811
1830
Lone Rock
885
1055
958
1567
796
688
1242
1598
1634
Beloit
958
1093
932
1046
1676
882
768
1368
1720
1746
Sullivan
869
1035
942
1529
783
674
1227
1569
1605
Madison
891
1074
926
974
1576
819
710
1266
1614
1656
Juneau
826
967

898
1468
742
637
1172
1505
1546
Racine
832
925
910
1519
758
652
1216
1565
1610
Waukesha
817
973

890
1468
737
630
1176
1512
1552
Milwaukee
832
976
778
912
1495
773
670
1204
1537
1576
Hartford
799
936
802
869
1428
714
613
1142
1468
1509
Appleton
785
966
800
865
1404
725
624
1144
1448
1490
Green Bay
779
942
780
857
1395
714
616
1135
1440
1481
Big Flats
800
978
860
1417
700
604
1111
1437
1487
Hancock
758
929
845
818
1354
664
572
1061
1378
1425
Pt Edwards
773
935
830
1361
679
583
1083
1391
1433
La Crosse876
1052
1024
953
1543
799
693
1246
1581
1631
Eau Claire805
1071
884
873
1420
725
627
1143
1454
1503
Cumberland
690
808
748
744
1248
610
516
989
1284
1346
Bayfield
564
706
584
1035
440
357
779
1051
1123
Wausau
666
807
786
713
1207
570
477
948
1237
1291
Medford
620
774
710
654
1136
507
418
872
1159
1225
Crivitz675
847
708
1222
552
463
930
1240
1303
Crandon
​589​
738
623
1094
481
399
832
1113
1182
​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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