Historical Climate Data

Growing Season Summary
Station: 474370 LA CROSSE WSO AIRPORT, 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 6 62 273 630 880 1048 974 673 339 64 4 4943
GDD
Base 45		 0 2 30 166 476 730 893 819 525 214 29 1 3880
GDD
Base 50		 0 0 13 90 329 580 738 664 381 120 11 0 2926
GDD
Base 55		 0 0 5 44 203 431 583 509 250 58 3 0 2089
GDD
Base 60		 0 0 1 19 111 288 428 355 145 22 0 0 1375
MGDD*
Base 50		 0 3 40 165 382 573 708 649 411 190 32 2 3152

*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 4/27 3/26 4/09 5/12 5/27 10/07 9/20 9/25 10/25 11/03
30 4/21 3/25 4/05 5/10 5/27 10/12 9/27 10/02 11/02 11/04
28 4/14 3/24 4/02 4/29 5/06 10/19 10/01 10/05 11/04 11/11
24 4/06 3/21 3/25 4/13 4/22 11/01 10/02 10/15 11/15 11/22
20 4/03 2/26 3/18 4/09 4/18 11/10 10/02 10/21 11/29 12/17
16 3/22 2/20 3/04 4/07 4/09 11/21 10/20 11/04 12/09 12/19

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

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 163 131 141 184 190
30 176 148 154 198 214
28 188 151 164 210 225
24 205 177 190 232 245
20 218 191 202 250 271
16 245 194 218 275 281