PILOT ROCK, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356634) PILOT ROCK
From Year=1948 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	57	69	150	279	512	705	943	920	655	353	118	54	4815
40 S	57	125	276	555	1067	1771	2714	3634	4290	4642	4761	4815	4815
45 M	19	23	60	152	359	555	788	765	506	214	48	18	3508
45 S	19	43	103	255	614	1168	1956	2722	3227	3441	3490	3508	3508
50 M	4	5	17	66	220	406	633	610	359	106	14	4	2446
50 S	4	10	27	93	314	720	1352	1963	2322	2428	2442	2446	2446
55 M	1	1	3	23	114	264	479	456	225	41	3	1	1609
55 S	1	2	5	28	142	406	885	1340	1565	1606	1608	1609	1609
60 M	0	0	0	6	48	147	327	305	117	11	0	0	962
60 S	0	0	0	6	54	201	528	834	951	962	962	962	962

Corn Growing Degree Days
50 M	30	42	99	187	323	438	577	567	426	245	68	29	3031
50 S	30	72	171	358	681	1119	1696	2263	2688	2934	3002	3031	3031

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