POINT LAY, ALASKA

Period of Record General Climate Summary - Growing Degree Days

Station:(507442) POINT LAY
From Year=1949 To Year=1958
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 0 1 45 177 192 27 0 0 0 441
40 S 0 0 0 0 1 46 223 415 441 441 441 441 441
45 M 0 0 0 0 0 14 75 87 5 0 0 0 181
45 S 0 0 0 0 0 14 89 176 181 181 181 181 181
50 M 0 0 0 0 0 5 20 25 0 0 0 0 50
50 S 0 0 0 0 0 5 25 50 50 50 50 50 50
55 M 0 0 0 0 0 2 4 3 0 0 0 0 9
55 S 0 0 0 0 0 2 6 9 9 9 9 9 9
60 M 0 0 0 0 0 1 0 0 0 0 0 0 1
60 S 0 0 0 0 0 1 1 1 1 1 1 1 1
Corn Growing Degree Days
50 M 0 0 0 0 1 18 62 55 4 0 0 0 140
50 S 0 0 0 0 1 18 80 135 140 140 140 140 140
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