MALHEUR BRANCH EXP STN, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(355160) MALHEUR BRANCH EXP STN
From Year=1942 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	5	22	128	319	597	807	1083	1013	686	340	56	9	5065
40 S	5	27	155	474	1071	1878	2961	3974	4660	5000	5056	5065	5065
45 M	1	4	48	188	443	657	928	858	536	203	15	2	3883
45 S	1	4	52	240	683	1341	2268	3127	3662	3865	3881	3883	3883
50 M	0	0	12	91	298	508	773	703	389	99	3	0	2876
50 S	0	0	13	104	402	909	1682	2386	2774	2873	2876	2876	2876
55 M	0	0	2	34	174	361	618	549	252	37	0	0	2027
55 S	0	0	2	36	210	571	1189	1737	1990	2026	2027	2027	2027
60 M	0	0	0	9	84	228	464	396	137	9	0	0	1326
60 S	0	0	0	9	93	321	784	1180	1317	1326	1326	1326	1326

Corn Growing Degree Days
50 M	2	14	93	214	372	503	672	628	446	242	34	3	3223
50 S	2	15	108	322	695	1198	1870	2498	2944	3186	3220	3223	3223

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