MADRAS, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(355139) MADRAS
From Year=1928 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	32	47	105	214	416	594	814	776	541	272	79	35	3925
40 S	32	78	184	398	814	1408	2222	2997	3539	3811	3890	3925	3925
45 M	8	14	38	110	271	445	659	621	394	150	28	10	2748
45 S	8	23	60	171	442	886	1545	2166	2560	2709	2738	2748	2748
50 M	1	3	9	45	151	300	504	466	256	64	7	2	1809
50 S	1	4	13	58	209	510	1014	1480	1736	1800	1807	1809	1809
55 M	0	0	1	13	71	174	351	315	140	19	1	0	1087
55 S	0	0	2	15	86	260	611	926	1067	1086	1087	1087	1087
60 M	0	0	0	2	27	83	210	180	59	4	0	0	565
60 S	0	0	0	3	29	113	323	503	562	565	565	565	565

Corn Growing Degree Days
50 M	17	36	102	193	317	407	527	519	408	242	56	19	2843
50 S	17	53	155	348	665	1072	1599	2118	2525	2767	2823	2843	2843

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