HERMISTON 1 SE, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(353847) HERMISTON 2 S
From Year=1906 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	33	62	194	385	632	823	1046	990	700	387	109	41	5402
40 S	33	94	289	674	1307	2130	3175	4165	4865	5252	5361	5402	5402
45 M	9	19	86	242	477	673	891	835	550	244	43	13	4081
45 S	9	28	114	356	833	1506	2397	3232	3782	4026	4068	4081	4081
50 M	2	4	26	124	325	523	736	680	402	126	12	3	2961
50 S	2	6	31	155	480	1003	1739	2419	2821	2946	2958	2961	2961
55 M	0	1	5	49	189	374	581	525	260	49	2	0	2034
55 S	0	1	5	54	244	618	1198	1723	1983	2032	2033	2034	2034
60 M	0	0	0	14	91	232	426	371	139	12	0	0	1287
60 S	0	0	0	14	105	338	764	1135	1274	1286	1286	1287	1287

Corn Growing Degree Days
50 M	16	38	137	255	399	512	649	620	455	265	61	20	3426
50 S	16	54	191	447	846	1358	2006	2626	3081	3346	3406	3426	3426

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