SQUAW BUTTE, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(358029) SQUAW BUTTE EXPERIMENT
From Year=1937 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	3	10	42	144	331	533	830	805	558	273	44	4	3578
40 S	3	13	55	199	531	1064	1894	2699	3257	3530	3574	3578	3578
45 M	0	1	13	70	206	387	675	651	414	160	13	0	2589
45 S	0	2	15	84	290	677	1352	2002	2417	2576	2589	2589	2589
50 M	0	0	2	26	111	255	521	497	282	78	2	0	1774
50 S	0	0	2	28	140	394	915	1412	1694	1772	1774	1774	1774
55 M	0	0	0	6	51	148	371	349	169	29	0	0	1124
55 S	0	0	0	7	57	205	576	925	1094	1124	1124	1124	1124
60 M	0	0	0	1	18	72	234	215	84	8	0	0	631
60 S	0	0	0	1	19	91	325	539	623	631	631	631	631

Corn Growing Degree Days
50 M	1	8	36	119	235	351	536	520	375	198	36	3	2419
50 S	1	9	46	165	400	751	1287	1807	2182	2381	2416	2419	2419

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