Historical Climate Data

Growing Season Summary
Station: 471205 BURLINGTON, 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 5 54 215 528 802 965 909 640 311 76 9 4362
GDD
Base 45		 0 1 24 124 381 652 811 755 491 191 35 3 3349
GDD
Base 50		 0 0 9 66 249 503 656 600 348 104 14 1 2461
GDD
Base 55		 0 0 3 33 147 358 501 445 220 47 3 0 1698
GDD
Base 60		 0 0 0 15 76 229 348 295 121 16 0 0 1064
MGDD*
Base 50		 1 4 35 131 316 509 641 594 391 186 43 4 2759

*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 4/10 4/22 5/25 6/12 10/07 9/20 9/23 10/17 10/17
30 5/02 4/01 4/12 5/14 5/22 10/10 9/21 9/27 10/31 11/08
28 4/26 4/01 4/10 5/07 5/22 10/14 9/21 9/27 11/05 11/11
24 4/10 3/21 3/28 4/28 5/21 10/31 9/23 10/17 11/12 11/20
20 4/01 3/13 3/15 4/10 4/11 11/11 10/03 10/22 11/28 11/29
16 3/19 2/27 3/09 4/07 4/09 11/22 11/02 11/08 12/06 1/02

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

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 150 120 134 171 189
30 162 134 140 192 212
28 176 134 149 194 214
24 197 160 185 221 230
20 220 190 202 249 257
16 251 217 219 270 287