LARSEN BAY, ALASKA

Period of Record General Climate Summary - Growing Degree Days

Station:(505425) LARSEN BAY
From Year=1951 To Year=1993
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	3	2	4	17	111	325	461	443	300	53	9	2	1731
40 S	3	5	9	26	137	462	924	1367	1667	1720	1729	1731	1731
45 M	0	0	0	2	25	182	306	288	154	11	1	0	969
45 S	0	0	0	2	27	209	515	803	957	968	969	969	969
50 M	0	0	0	0	1	66	154	136	42	1	0	0	400
50 S	0	0	0	0	1	67	221	357	399	400	400	400	400
55 M	0	0	0	0	0	17	41	33	5	0	0	0	96
55 S	0	0	0	0	0	17	58	91	96	96	96	96	96
60 M	0	0	0	0	0	5	5	3	0	0	0	0	13
60 S	0	0	0	0	0	5	10	13	13	13	13	13	13

Corn Growing Degree Days
50 M	0	0	0	6	47	154	212	188	112	13	0	0	733
50 S	0	0	1	6	54	208	419	607	720	732	733	733	733

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