PILOT ROCK 1 SE, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356634) PILOT ROCK
From Year=1908 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	53	62	160	305	533	725	975	939	666	370	120	56	4966
40 S	53	116	276	581	1114	1840	2815	3754	4420	4790	4910	4966	4966
45 M	18	21	67	175	380	575	820	784	517	229	49	19	3655
45 S	18	39	106	281	661	1236	2056	2841	3358	3587	3636	3655	3655
50 M	4	5	21	82	238	426	665	629	370	116	15	5	2577
50 S	4	9	30	112	351	777	1442	2071	2441	2558	2572	2577	2577
55 M	1	1	4	32	126	283	511	475	234	45	3	1	1715
55 S	1	2	6	37	164	446	957	1432	1666	1711	1714	1715	1715
60 M	0	0	0	9	55	159	358	323	124	12	0	0	1043
60 S	0	0	0	10	65	225	583	906	1031	1042	1043	1043	1043

Corn Growing Degree Days
50 M	30	38	108	202	339	451	596	580	427	249	72	30	3120
50 S	30	68	175	377	716	1167	1763	2343	2770	3019	3090	3120	3120

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