STOCKDILL RANCH, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(458115) STOCKDILL RANCH
From Year=1909 To Year=1963
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	0	15	136	343	511	715	681	436	158	7	0	3003
40 S	0	1	15	152	495	1006	1721	2402	2838	2997	3003	3003	3003
45 M	0	0	2	52	201	361	560	526	291	66	1	0	2061
45 S	0	0	2	54	256	617	1177	1703	1994	2060	2061	2061	2061
50 M	0	0	0	13	94	218	405	372	162	20	0	0	1284
50 S	0	0	0	14	107	325	730	1102	1264	1284	1284	1284	1284
55 M	0	0	0	3	30	103	254	224	68	3	0	0	685
55 S	0	0	0	3	32	135	389	614	682	685	685	685	685
60 M	0	0	0	0	6	35	125	101	18	0	0	0	285
60 S	0	0	0	0	6	41	166	267	285	285	285	285	285

Corn Growing Degree Days
50 M	0	1	25	148	281	363	492	484	351	158	7	0	2311
50 S	0	1	27	175	456	820	1312	1795	2146	2304	2311	2311	2311

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