OWYHEE DAM, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356405) OWYHEE DAM
From Year=1935 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	15	41	158	338	593	788	1055	1004	719	409	88	23	5231
40 S	15	56	214	552	1145	1933	2988	3992	4711	5120	5208	5231	5231
45 M	3	10	66	203	439	638	900	849	569	265	31	6	3980
45 S	3	13	79	282	721	1359	2259	3107	3677	3942	3973	3980	3980
50 M	0	1	19	101	293	488	745	694	421	145	8	1	2916
50 S	0	2	21	122	414	903	1647	2341	2762	2906	2914	2916	2916
55 M	0	0	3	39	168	341	590	539	280	62	1	0	2023
55 S	0	0	3	42	210	551	1141	1680	1960	2022	2023	2023	2023
60 M	0	0	0	10	78	208	436	386	159	19	0	0	1296
60 S	0	0	0	10	88	296	732	1117	1276	1296	1296	1296	1296

Corn Growing Degree Days
50 M	7	25	109	224	377	486	623	600	463	278	54	11	3257
50 S	7	32	141	365	742	1228	1851	2451	2913	3191	3246	3257	3257

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