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Home
Midwest Climate
Climate Summaries
Growing Season
Growing Season Summary for Station USW00014839 - MILWAUKEE MITCHELL AP, WI
Growing season summary by month
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