COLD BAY AP, ALASKA

Period of Record General Climate Summary - Growing Degree Days

Station:(502102) COLD BAY WB AIRPORT
From Year=1950 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	1	0	1	4	48	177	325	360	230	58	12	2	1220
40 S	1	2	2	7	55	232	557	917	1147	1206	1218	1220	1220
45 M	0	0	0	0	6	54	171	206	95	10	1	0	541
45 S	0	0	0	0	6	59	230	436	530	540	541	541	541
50 M	0	0	0	0	0	5	45	67	17	1	0	0	135
50 S	0	0	0	0	0	5	51	117	134	134	135	135	135
55 M	0	0	0	0	0	0	4	8	1	0	0	0	13
55 S	0	0	0	0	0	0	4	12	13	13	13	13	13
60 M	0	0	0	0	0	0	0	1	0	0	0	0	1
60 S	0	0	0	0	0	0	0	1	1	1	1	1	1

Corn Growing Degree Days
50 M	0	0	0	0	7	32	81	97	43	6	1	0	267
50 S	0	0	0	0	8	39	120	217	261	266	267	267	267

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