PARKDALE, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356464) PARKDALE
From Year=1912 To Year=1969
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	14	19	70	208	396	553	734	709	517	276	57	20	3574
40 S	14	33	103	311	708	1261	1995	2704	3221	3497	3554	3574	3574
45 M	3	3	20	97	249	403	579	554	369	144	13	5	2439
45 S	3	6	25	123	372	775	1354	1908	2277	2421	2434	2439	2439
50 M	0	0	3	35	129	257	424	399	226	54	2	1	1530
50 S	0	0	4	39	167	424	848	1247	1474	1527	1529	1530	1530
55 M	0	0	0	9	52	135	272	248	108	12	0	0	835
55 S	0	0	0	9	60	195	467	715	823	835	835	835	835
60 M	0	0	0	1	15	55	141	121	34	1	0	0	369
60 S	0	0	0	1	16	71	212	334	368	369	369	369	369

Corn Growing Degree Days
50 M	5	13	53	150	263	346	468	456	343	177	28	7	2310
50 S	5	18	71	221	484	830	1298	1754	2097	2275	2302	2310	2310

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