CAPE HINCHINBROOK, ALASKA

Period of Record General Climate Summary - Growing Degree Days

Station:(501308) CAPE HINCHINBROOK
From Year=1949 To Year=1974
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	2	1	1	16	116	302	442	456	306	95	15	2	1755
40 S	2	3	3	20	136	438	880	1336	1642	1737	1752	1755	1755
45 M	0	0	0	4	31	159	287	301	160	19	0	0	960
45 S	0	0	0	4	34	193	480	781	941	960	960	960	960
50 M	0	0	0	1	6	54	136	148	42	2	0	0	389
50 S	0	0	0	1	7	61	197	345	387	389	389	389	389
55 M	0	0	0	0	1	12	34	34	3	0	0	0	83
55 S	0	0	0	0	1	13	47	80	83	83	83	83	83
60 M	0	0	0	0	0	2	6	5	0	0	0	0	13
60 S	0	0	0	0	0	2	8	13	13	13	13	13	13

Corn Growing Degree Days
50 M	0	0	0	3	19	82	149	156	66	6	0	0	482
50 S	0	0	0	3	22	105	254	410	476	482	482	482	482

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