UNITY, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(358780) UNITY
From Year=1908 To Year=2007
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	1	3	32	120	317	504	760	719	453	191	16	2	3119
40 S	1	4	36	157	474	979	1739	2458	2910	3101	3117	3119	3119
45 M	0	0	8	45	185	357	605	564	310	91	3	0	2168
45 S	0	0	8	53	238	595	1200	1764	2074	2165	2167	2168	2168
50 M	0	0	1	12	87	221	451	410	184	30	0	0	1395
50 S	0	0	1	13	100	320	771	1181	1365	1395	1395	1395	1395
55 M	0	0	0	2	31	113	299	264	86	4	0	0	799
55 S	0	0	0	2	32	146	445	709	795	799	799	799	799
60 M	0	0	0	0	7	46	163	135	26	0	0	0	378
60 S	0	0	0	0	8	54	216	351	377	378	378	378	378

Corn Growing Degree Days
50 M	0	4	42	128	257	363	521	500	371	196	23	1	2405
50 S	0	5	46	175	432	795	1315	1815	2186	2382	2405	2405	2405

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