OTIS, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356366) OTIS
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	110	138	190	256	394	499	611	639	562	399	200	114	4112
40 S	110	248	438	694	1087	1586	2197	2837	3399	3798	3998	4112	4112
45 M	36	48	71	119	240	349	456	484	412	248	87	38	2588
45 S	36	84	154	274	514	862	1319	1803	2215	2463	2550	2588	2588
50 M	5	9	14	36	106	200	301	329	263	114	21	7	1405
50 S	5	14	28	64	170	370	671	1001	1263	1377	1398	1405	1405
55 M	0	1	1	7	32	73	149	175	123	31	2	1	596
55 S	0	1	2	9	41	115	264	439	562	593	595	596	596
60 M	0	0	0	1	8	17	38	49	32	5	0	0	150
60 S	0	0	0	1	9	25	63	113	145	149	150	150	150

Corn Growing Degree Days
50 M	18	40	73	113	188	247	331	355	309	183	56	20	1933
50 S	18	58	132	244	432	679	1010	1365	1673	1857	1913	1933	1933

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