DIAMOND 4 WNW, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(352305) DIAMOND 4 WNW
From Year=1893 To Year=1957
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	9	11	43	149	303	536	728	703	386	178	62	12	3119
40 S	9	19	62	211	514	1050	1778	2481	2867	3045	3107	3119	3119
45 M	0	1	15	68	176	390	573	548	245	75	21	2	2115
45 S	0	1	16	84	260	650	1223	1772	2016	2092	2113	2115	2115
50 M	0	0	5	22	82	257	419	394	127	22	6	0	1334
50 S	0	0	5	26	109	365	784	1179	1306	1329	1334	1334	1334
55 M	0	0	1	5	27	143	273	250	50	4	2	0	756
55 S	0	0	1	6	33	177	450	700	751	755	756	756	756
60 M	0	0	0	0	5	64	148	132	14	0	0	0	363
60 S	0	0	0	1	6	69	217	349	363	363	363	363	363

Corn Growing Degree Days
50 M	6	17	55	154	247	380	502	489	324	206	69	7	2458
50 S	6	22	77	232	479	859	1361	1851	2175	2381	2451	2458	2458

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