Historical Climate Data

Growing Season Summary
Station: 472314 EAGLE RIVER, 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 0 19 88 423 694 798 758 460 158 16 0 3411
GDD
Base 45		 0 0 6 40 290 545 643 604 319 77 5 0 2527
GDD
Base 50		 0 0 0 14 179 401 488 449 196 29 1 0 1759
GDD
Base 55		 0 0 0 3 94 268 335 298 106 10 0 0 1115
GDD
Base 60		 0 0 0 0 42 152 193 166 48 1 0 0 603
MGDD*
Base 50		 0 0 15 69 262 431 498 469 266 95 9 0 2114

*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 5/27 5/08 5/11 6/14 6/22 9/24 9/15 9/17 10/01 10/02
30 5/19 4/24 4/30 6/01 6/05 9/27 9/20 9/22 10/03 10/04
28 5/08 4/24 4/25 5/29 6/05 9/29 9/20 9/22 10/15 10/18
24 4/26 4/10 4/12 5/10 5/16 10/20 10/02 10/06 11/07 11/10
20 4/14 3/24 3/28 4/21 4/23 10/28 10/02 10/08 11/16 11/16
16 4/08 3/24 3/25 4/16 4/18 11/10 11/01 11/01 11/26 11/29

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

Base
Temp
°F		 Median Shortest 10% 90% Longest
32 123 94 100 139 142
30 134 109 114 150 156
28 145 110 120 163 164
24 173 159 159 199 203
20 204 162 170 220 223
16 216 197 202 241 249