EAGLE, ALASKA

Period of Record General Climate Summary - Growing Degree Days

Station:(502607) EAGLE
From Year=1949 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 0 0 0 16 204 523 620 435 130 5 0 0 1933
40 S 0 0 0 16 221 744 1364 1799 1929 1933 1933 1933 1933
45 M 0 0 0 3 103 375 465 287 51 1 0 0 1284
45 S 0 0 0 3 105 480 945 1232 1283 1284 1284 1284 1284
50 M 0 0 0 0 42 232 312 159 13 0 0 0 758
50 S 0 0 0 0 43 275 587 745 758 758 758 758 758
55 M 0 0 0 0 14 113 170 67 2 0 0 0 366
55 S 0 0 0 0 14 127 297 365 366 366 366 366 366
60 M 0 0 0 0 3 39 63 19 0 0 0 0 124
60 S 0 0 0 0 3 42 105 124 124 124 124 124 124
Corn Growing Degree Days
50 M 0 0 0 21 158 320 367 266 93 4 0 0 1230
50 S 0 0 0 21 179 500 867 1134 1227 1230 1230 1230 1230
M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu