POWERS, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356820) POWERS
From Year=1932 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	155	187	255	338	487	602	754	759	654	489	265	164	5108
40 S	155	342	597	935	1422	2024	2778	3537	4191	4680	4944	5108	5108
45 M	61	82	123	195	333	452	599	604	504	335	135	65	3487
45 S	61	142	265	460	793	1245	1844	2449	2952	3287	3422	3487	3487
50 M	14	23	41	84	187	302	444	449	354	190	47	16	2153
50 S	14	37	78	162	349	652	1096	1545	1899	2089	2136	2153	2153
55 M	2	3	8	24	77	161	289	295	208	78	10	2	1157
55 S	2	5	13	37	114	275	564	858	1067	1145	1155	1157	1157
60 M	0	0	1	3	21	57	143	147	87	20	1	0	480
60 S	0	0	1	4	25	82	225	372	459	479	480	480	480

Corn Growing Degree Days
50 M	71	99	141	190	273	347	464	475	411	295	136	70	2974
50 S	71	170	312	502	775	1121	1586	2061	2472	2767	2903	2974	2974

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