MT FANNY, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(355788) MOUNT FANNY
From Year=1965 To Year=1975
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	1	0	4	6	117	252	513	569	275	96	6	0	1838
40 S	1	1	5	11	127	379	892	1461	1735	1832	1838	1838	1838
45 M	0	0	0	1	56	156	368	421	176	43	1	0	1221
45 S	0	0	0	1	57	212	580	1001	1178	1220	1221	1221	1221
50 M	0	0	0	0	20	83	237	287	99	12	0	0	737
50 S	0	0	0	0	20	103	340	627	726	737	737	737	737
55 M	0	0	0	0	5	37	128	168	44	2	0	0	385
55 S	0	0	0	0	5	42	171	338	382	385	385	385	385
60 M	0	0	0	0	1	11	50	77	12	0	0	0	150
60 S	0	0	0	0	1	11	61	138	150	150	150	150	150

Corn Growing Degree Days
50 M	0	0	1	2	53	129	293	333	143	38	1	0	995
50 S	0	0	1	4	56	185	479	812	955	993	995	995	995

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