TIETON INTAKE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(458442) TIETON INTAKE
From Year=1934 To Year=1972
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	5	36	158	389	564	797	756	526	215	19	3	3469
40 S	3	8	44	201	590	1154	1951	2707	3233	3448	3466	3469	3469
45 M	1	1	8	67	244	414	642	601	378	107	3	0	2465
45 S	1	1	9	76	320	734	1376	1977	2355	2462	2465	2465	2465
50 M	0	0	0	21	130	268	488	446	240	40	1	0	1635
50 S	0	0	1	22	152	420	908	1354	1594	1634	1635	1635	1635
55 M	0	0	0	5	55	145	337	295	126	10	0	0	973
55 S	0	0	0	5	60	204	541	837	963	972	973	973	973
60 M	0	0	0	0	17	64	201	164	49	1	0	0	496
60 S	0	0	0	0	17	81	282	446	495	496	496	496	496

Corn Growing Degree Days
50 M	1	4	34	120	257	342	495	473	342	142	10	2	2222
50 S	1	5	39	159	416	758	1253	1726	2068	2211	2220	2222	2222

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