COQUILLE CITY, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(351836) COQUILLE KWRO
From Year=1971 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	177	196	253	297	428	532	657	676	599	464	268	168	4715
40 S	177	374	626	923	1351	1884	2541	3217	3816	4279	4547	4715	4715
45 M	70	85	118	155	273	382	502	521	449	309	137	64	3067
45 S	70	156	274	428	702	1084	1586	2107	2556	2865	3002	3067	3067
50 M	16	23	36	55	133	233	347	366	299	164	48	17	1735
50 S	16	38	74	129	262	495	842	1207	1506	1670	1719	1735	1735
55 M	2	4	5	12	44	97	193	211	154	58	10	2	790
55 S	2	5	11	23	67	163	356	567	720	778	788	790	790
60 M	0	0	0	1	9	21	60	70	44	12	1	0	220
60 S	0	0	1	2	11	33	93	163	207	219	220	220	220

Corn Growing Degree Days
50 M	79	95	121	148	221	281	371	388	353	269	129	71	2528
50 S	79	174	296	444	665	946	1317	1705	2058	2328	2457	2528	2528

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