LA GRANDE, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(354622) LA GRANDE
From Year=1965 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	11	27	95	214	454	666	917	902	603	293	64	13	4258
40 S	11	38	132	346	801	1466	2383	3285	3888	4181	4245	4258	4258
45 M	1	5	33	108	307	516	762	747	455	168	21	2	3125
45 S	1	7	39	148	455	970	1732	2479	2934	3102	3123	3125	3125
50 M	0	0	8	45	181	369	607	592	314	77	5	0	2199
50 S	0	0	8	54	234	604	1210	1803	2117	2194	2199	2199	2199
55 M	0	0	1	14	88	237	453	439	192	27	1	0	1452
55 S	0	0	1	15	104	341	793	1232	1424	1451	1452	1452	1452
60 M	0	0	0	3	35	129	305	292	97	6	0	0	868
60 S	0	0	0	3	38	167	472	764	861	868	868	868	868

Corn Growing Degree Days
50 M	2	13	62	137	275	405	572	561	395	207	28	3	2661
50 S	2	15	77	214	490	895	1467	2028	2424	2630	2658	2661	2661

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 Jul 28, 2006
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