TANACROSS, ALASKA

Period of Record General Climate Summary - Growing Degree Days

Station:(508987) TANACROSS
From Year=1949 To Year=2003
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 6 142 462 554 418 104 2 0 0 1688
40 S 0 0 0 6 148 610 1164 1582 1686 1688 1688 1688 1688
45 M 0 0 0 1 57 314 399 270 38 0 0 0 1078
45 S 0 0 0 1 58 372 770 1040 1078 1078 1078 1078 1078
50 M 0 0 0 0 16 180 246 144 11 0 0 0 596
50 S 0 0 0 0 16 196 442 586 596 596 596 596 596
55 M 0 0 0 0 3 77 115 60 2 0 0 0 258
55 S 0 0 0 0 3 80 195 256 258 258 258 258 258
60 M 0 0 0 0 0 20 36 18 0 0 0 0 75
60 S 0 0 0 0 0 20 56 75 75 75 75 75 75
Corn Growing Degree Days
50 M 0 0 0 11 122 299 347 283 86 2 0 0 1150
50 S 0 0 0 11 133 432 778 1062 1148 1150 1150 1150 1150
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