PELTON DAM, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356532) PELTON DAM
From Year=1958 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	50	79	185	321	562	760	1005	979	722	407	130	45	5244
40 S	50	129	314	636	1198	1957	2962	3941	4663	5070	5199	5244	5244
45 M	15	25	80	188	408	610	850	824	572	263	52	14	3900
45 S	15	40	120	308	716	1326	2176	3000	3571	3834	3886	3900	3900
50 M	3	5	24	92	263	460	695	669	423	141	15	3	2792
50 S	3	8	31	123	386	847	1541	2210	2633	2774	2789	2792	2792
55 M	0	0	4	35	146	315	540	514	280	58	3	0	1895
55 S	0	1	5	39	186	500	1040	1554	1834	1892	1895	1895	1895
60 M	0	0	0	9	68	186	386	361	155	17	0	0	1184
60 S	0	0	0	10	78	264	650	1011	1166	1183	1184	1184	1184

Corn Growing Degree Days
50 M	32	64	158	248	384	479	588	577	472	306	82	26	3414
50 S	32	96	254	502	885	1364	1952	2529	3001	3307	3389	3414	3414

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