EUGENE, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(352706) EUGENE
From Year=1892 To Year=1945
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	89	108	221	346	500	642	814	812	631	431	194	108	4897
40 S	89	197	418	764	1264	1906	2720	3533	4164	4595	4789	4897	4897
45 M	29	34	100	202	346	492	659	657	481	279	87	39	3406
45 S	29	63	163	365	711	1203	1862	2520	3001	3280	3367	3406	3406
50 M	6	7	30	90	198	342	504	503	332	143	24	9	2188
50 S	6	13	43	133	331	673	1178	1680	2012	2155	2179	2188	2188
55 M	1	1	5	26	85	197	349	348	188	49	3	1	1254
55 S	1	1	6	33	117	315	664	1012	1200	1249	1253	1254	1254
60 M	0	0	0	5	25	82	198	196	75	10	0	0	591
60 S	0	0	0	5	30	113	310	506	581	591	591	591	591

Corn Growing Degree Days
50 M	25	42	113	196	292	380	506	505	381	232	73	30	2774
50 S	25	67	181	377	669	1049	1554	2060	2440	2672	2745	2774	2774

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