PELICAN, ALASKA

Period of Record General Climate Summary - Growing Degree Days

Station:(507141) PELICAN 1 E
From Year=1967 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	2	2	3	45	184	331	453	467	311	120	12	2	1931
40 S	2	4	7	52	236	567	1020	1486	1797	1917	1928	1931	1931
45 M	0	0	0	9	70	182	298	312	165	32	1	0	1068
45 S	0	0	0	9	79	261	559	871	1036	1067	1068	1068	1068
50 M	0	0	0	2	16	62	147	158	50	4	0	0	439
50 S	0	0	0	2	18	80	227	385	435	439	439	439	439
55 M	0	0	0	0	2	11	38	43	5	0	0	0	99
55 S	0	0	0	0	3	13	51	94	99	99	99	99	99
60 M	0	0	0	0	0	1	5	7	0	0	0	0	13
60 S	0	0	0	0	0	2	6	13	13	13	13	13	13

Corn Growing Degree Days
50 M	0	0	1	20	71	123	175	189	103	17	0	0	701
50 S	0	0	1	21	93	216	391	580	683	700	701	701	701

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