LA GRANDE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(454360) LA GRANDE
From Year=1954 To Year=1983
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	72	100	139	247	461	599	773	772	608	378	151	90	4390
40 S	72	171	311	558	1019	1618	2391	3163	3771	4149	4301	4390	4390
45 M	21	35	48	120	308	449	618	617	458	230	59	27	2989
45 S	21	55	104	224	532	981	1599	2216	2674	2903	2962	2989	2989
50 M	3	7	10	45	171	301	463	462	309	107	13	4	1896
50 S	3	11	20	66	237	537	1000	1462	1771	1878	1891	1896	1896
55 M	0	1	1	15	78	165	309	307	171	35	1	0	1084
55 S	0	1	2	16	94	260	569	876	1047	1082	1083	1084	1084
60 M	0	0	0	3	29	73	168	164	72	6	0	0	517
60 S	0	0	0	4	32	106	274	438	510	516	517	517	517

Corn Growing Degree Days
50 M	17	32	58	123	250	334	465	459	338	171	45	19	2309
50 S	17	49	107	229	479	813	1277	1736	2074	2245	2290	2309	2309

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