RUSSIAN MISSION, ALASKA

Period of Record General Climate Summary - Growing Degree Days

Station:(508054) RUSSIAN MISSION
From Year=1966 To Year=1987
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	108	319	450	383	130	5	0	0	1395
40 S	0	0	0	0	108	428	878	1261	1390	1395	1395	1395	1395
45 M	0	0	0	0	46	187	296	235	48	0	0	0	814
45 S	0	0	0	0	46	233	530	765	813	814	814	814	814
50 M	0	0	0	0	15	86	156	113	10	0	0	0	381
50 S	0	0	0	0	15	102	257	371	381	381	381	381	381
55 M	0	0	0	0	5	29	60	36	1	0	0	0	130
55 S	0	0	0	0	5	33	94	129	130	130	130	130	130
60 M	0	0	0	0	1	5	18	8	0	0	0	0	32
60 S	0	0	0	0	1	6	25	32	32	32	32	32	32

Corn Growing Degree Days
50 M	0	0	0	0	65	163	222	180	57	1	0	0	688
50 S	0	0	0	0	65	229	450	630	687	688	688	688	688

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