Historical Climate Data

Growing Season Summary
Station: 472556 ELLSWORTH 1 E, 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		 0 2 38 215 561 808 954 876 587 284 39 1 4221
GDD
Base 45		 0 0 15 122 412 659 801 722 442 173 15 0 3242
GDD
Base 50		 0 0 4 61 275 509 648 567 303 91 5 0 2373
GDD
Base 55		 0 0 1 27 160 364 495 414 184 40 1 0 1620
GDD
Base 60		 0 0 0 10 78 229 342 266 96 13 0 0 996
MGDD*
Base 50		 0 1 28 147 346 522 634 572 362 176 23 1 2719

*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 5/07 4/08 4/25 5/21 5/26 9/30 9/13 9/20 10/13 10/30
30 5/02 4/08 4/18 5/19 5/26 9/30 9/13 9/20 10/16 10/31
28 4/27 3/26 4/09 5/08 5/14 10/04 9/13 9/21 10/30 11/10
24 4/12 3/23 3/27 4/30 5/09 10/19 9/25 10/03 11/06 11/12
20 4/08 3/15 3/20 4/19 4/30 11/01 10/02 10/12 11/14 11/16
16 3/28 2/26 3/15 4/09 4/19 11/08 10/11 10/25 11/24 11/30

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

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 143 120 131 176 185
30 147 131 132 181 197
28 161 137 140 197 216
24 191 150 158 217 225
20 208 164 180 224 243
16 222 190 198 252 261