CHANDALAR LAKE, ALASKA

Period of Record General Climate Summary - Growing Degree Days

Station:(501492) CHANDALAR LAKE
From Year=1968 To Year=2004
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	69	359	465	257	44	0	0	0	1193
40 S	0	0	0	0	69	428	893	1149	1193	1193	1193	1193	1193
45 M	0	0	0	0	25	218	312	132	9	0	0	0	697
45 S	0	0	0	0	25	243	555	688	697	697	697	697	697
50 M	0	0	0	0	7	103	174	51	1	0	0	0	335
50 S	0	0	0	0	7	110	283	334	335	335	335	335	335
55 M	0	0	0	0	2	36	68	13	0	0	0	0	119
55 S	0	0	0	0	2	38	105	119	119	119	119	119	119
60 M	0	0	0	0	1	9	16	2	0	0	0	0	28
60 S	0	0	0	0	1	9	26	28	28	28	28	28	28

Corn Growing Degree Days
50 M	0	0	0	0	59	225	285	173	37	0	0	0	779
50 S	0	0	0	0	59	284	570	743	779	779	779	779	779

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 Jul 28, 2006
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