MASON DAM, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(355258) MASON DAM
From Year=1969 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	0	2	26	122	315	502	721	721	458	189	17	0	3073
40 S	0	2	28	151	465	967	1688	2409	2867	3056	3073	3073	3073
45 M	0	0	5	51	185	355	566	566	315	90	2	0	2135
45 S	0	0	5	56	241	596	1162	1728	2043	2132	2135	2135	2135
50 M	0	0	0	16	91	222	411	412	188	31	0	0	1372
50 S	0	0	0	16	107	328	740	1152	1341	1371	1372	1372	1372
55 M	0	0	0	4	35	114	264	265	92	8	0	0	781
55 S	0	0	0	4	39	153	417	682	774	781	781	781	781
60 M	0	0	0	0	9	44	137	137	30	1	0	0	358
60 S	0	0	0	0	9	53	190	327	357	358	358	358	358

Corn Growing Degree Days
50 M	0	5	36	113	234	342	481	481	340	171	14	0	2218
50 S	0	6	41	154	388	730	1211	1692	2032	2204	2218	2218	2218

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