SANTIAM JUNCTION, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(357554) SANTIAM JUNCTION
From Year=1949 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	3	8	20	78	223	353	608	596	430	203	40	2	2565
40 S	3	11	31	109	332	685	1293	1889	2319	2523	2562	2565	2565
45 M	0	0	3	32	124	219	453	442	290	101	10	0	1674
45 S	0	0	3	35	159	378	831	1273	1563	1664	1673	1674	1674
50 M	0	0	0	11	61	114	303	294	167	40	1	0	989
50 S	0	0	0	11	71	185	488	781	948	988	989	989	989
55 M	0	0	0	2	22	46	174	165	77	11	0	0	497
55 S	0	0	0	2	23	69	243	408	486	497	497	497	497
60 M	0	0	0	0	5	13	81	75	24	2	0	0	200
60 S	0	0	0	0	5	18	99	174	198	200	200	200	200

Corn Growing Degree Days
50 M	3	12	26	67	164	234	403	412	316	160	30	4	1832
50 S	3	16	42	109	272	506	909	1321	1637	1798	1828	1832	1832

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