Historical Climate Data

Growing Season Summary
Station: 479050 WEST BEND, WI

Growing Degree Day Averages
Derived from 1971-2000 Data

 

Element JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
GDD
Base 40		 1 4 47 193 503 766 941 884 620 311 65 6 4294
GDD
Base 45		 0 1 23 107 356 617 787 729 472 189 28 2 3274
GDD
Base 50		 0 0 10 53 227 468 633 575 329 101 10 0 2377
GDD
Base 55		 0 0 3 23 129 325 479 420 202 45 2 0 1609
GDD
Base 60		 0 0 0 10 66 197 326 271 107 15 0 0 982
MGDD*
Base 50		 0 2 30 117 304 484 623 575 375 171 32 3 2687

*Modified Growing Degree Days: Base 50 Ceiling 86.

Growing Season Summary
Derived from 1971-2000 Averages

  Date of Last Spring Occurrence Date of First Fall Occurrence
Base
Temp
°F		 Median Early 90% 10% Late Median Early 90% 10% Late
32 5/10 4/18 4/26 5/27 6/01 10/03 9/16 9/22 10/19 11/03
30 5/02 4/08 4/15 5/22 5/27 10/06 9/16 9/23 11/02 11/04
28 4/26 3/27 4/10 5/12 5/16 10/17 9/22 9/26 11/04 11/12
24 4/10 3/24 3/30 4/29 5/16 11/02 10/13 10/17 11/14 11/19
20 4/04 3/14 3/18 4/11 4/18 11/08 10/13 10/20 11/20 11/26
16 3/22 2/27 3/10 4/06 4/09 11/21 10/31 11/07 12/02 12/07

Length of Growing Season (Days)
Derived from 1971-2000 Averages

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 148 121 129 167 177
30 159 121 137 182 203
28 174 138 142 200 210
24 206 171 182 220 228
20 219 190 199 242 247
16 241 218 219 263 268