Historical Climate Data

Growing Season Summary
Station: 470308 ARLINGTON EXP FARM, 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 4 53 233 570 822 974 910 640 323 64 5 4598
GDD
Base 45		 0 1 25 135 418 672 819 755 492 202 28 2 3551
GDD
Base 50		 0 0 11 70 278 522 664 600 349 111 10 0 2618
GDD
Base 55		 0 0 4 32 163 375 509 445 222 50 2 0 1807
GDD
Base 60		 0 0 0 13 81 237 355 294 122 18 0 0 1125
MGDD*
Base 50		 0 2 34 151 352 530 649 597 396 191 32 2 2940

*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 4/10 4/23 5/24 5/27 10/04 9/11 9/23 10/14 11/03
30 4/28 3/26 4/12 5/10 5/21 10/07 9/19 9/24 11/01 11/03
28 4/21 3/25 4/09 5/07 5/09 10/13 9/22 9/26 11/05 12/07
24 4/10 3/21 3/30 4/22 5/01 10/28 10/02 10/12 11/15 12/07
20 4/05 3/10 3/19 4/13 4/22 11/09 10/19 10/20 11/24 12/07
16 3/29 2/20 3/11 4/09 4/13 11/13 10/20 11/02 12/04 12/21

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

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 153 121 135 174 189
30 163 138 145 186 203
28 179 138 151 206 223
24 199 176 184 216 261
20 218 189 202 241 264
16 232 200 213 265 280