About Climate Summary Tables

Growing Season Summary for Station USW00014898 - GREEN BAY A S INTL AP, WI

Growing season summary by month
Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
GDD
Base 40		 0 3 43 179 515 794 947 885 630 286 62 6 4348
GDD
Base 45		 0 1 20 94 364 642 792 730 480 172 27 2 3323
GDD
Base 50		 0 0 9 44 234 492 637 575 337 91 9 0 2428
GDD
Base 60		 0 0 2 5 64 214 328 269 112 14 1 0 1010
MGDD*
Base 50		 0 0 9 40 227 480 618 563 329 87 8 0 2363

*Modified Growing Degree Days: Base 50 Ceiling 86.

Growing Season Summary - Derived from 1991-2020 Averages
  DATE OF LAST SPRING OCCURRENCE   DATE OF FIRST FALL OCCURRENCE
Base
Temp °F		 Median Early 90% 10% Late . Median Early 90% 10% Late
36 05-15 04-25 05-28 04-29 06-08 . 09-28 09-14 10-12 09-16 10-25
32 05-04 04-16 05-16 04-22 05-21 . 10-06 09-15 10-22 09-21 10-27
28 04-21 03-23 05-03 04-02 05-12 . 10-14 09-23 11-04 09-30 11-19
24 04-06 03-09 04-16 03-24 04-20 . 11-06 10-05 11-16 10-06 12-04
20 03-26 03-05 04-09 03-14 04-15 . 11-13 10-22 12-02 11-03 12-09
16 03-19 02-01 04-06 03-07 04-09 . 11-23 11-03 12-11 11-07 12-24

 

Length of Growing Season (Days) - Derived from 1991-2020 Normals
*Annual/seasonal totals may differ from the sum of the monthly totals due to rounding
Base
Temp °F		 Median Shortest 10% 90% Longest
36 135 107 119 153 169
32 152 136 142 173 182
28 177 152 156 215 224
24 211 179 186 235 242
20 235 196 212 258 266
16 247 215 218 271 280