MIDWEST CLIMATE: CLIMATE SUMMARIES

Growing Season Summary for Station USW00014839 - MILWAUKEE MITCHELL AP, WI

Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
GDD
Base 40
3 7 57 203 488 786 986 953 693 357 98 11 4639
GDD
Base 45
1 2 27 114 340 636 831 798 544 227 45 3 3568
GDD
Base 50
0 0 12 58 214 487 676 643 397 126 16 1 2631
GDD
Base 60
0 0 2 12 60 219 366 335 148 23 1 0 1165
MGDD*
Base 50
1 3 32 105 259 487 662 635 410 170 40 4 2806
*Modified Growing Degree Days: Base 50 Ceiling 86.

 

Growing Season Summary - Derived from 1981-2010 Averages
  DATE OF LAST SPRING OCCURRENCE   DATE OF FIRST FALL OCCURANCE
Base
Temp °F
Median Early 90% 10% Late   Median Early 90% 10% Late
36 05/04 04/11 05/21 04/21 06/04   10/12 09/19 09/29 10/25 04/01
32 04/22 04/04 05/07 04/08 05/27   10/23 09/20 10/09 11/06 04/01
28 04/10 03/09 04/24 03/29 05/10   11/02 09/23 10/19 11/17 04/02
24 04/01 03/05 04/15 03/17 05/10   11/13 10/18 10/30 11/27 12/09
20 03/21 02/21 04/05 03/07 04/13   11/24 10/24 11/07 12/07 12/24
16 03/12 02/14 03/28 02/26 04/07   12/01 11/02 11/16 12/18 11/25

 

Length of Growing Season (Days) - Derived from 1981-2010 Normals
*Annual/seasonal totals may differ from the sum of the monthly totals due to rounding
Base
Temp °F
Median Shortest 10% 90% Longest
36 158 118 138 178 198
32 182 125 161 202 223
28 206 149 186 225 248
24 226 168 206 246 263
20 246 209 226 267 278
16 158 168 243 285 263

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