TIETON INTAKE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(458442) TIETON INTAKE
From Year=1948 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	4	5	25	124	354	552	761	733	502	195	20	2	3277
40 S	4	9	34	157	511	1063	1825	2558	3060	3255	3275	3277	3277
45 M	1	0	4	46	214	402	607	578	354	93	3	0	2302
45 S	1	1	5	51	265	667	1274	1852	2206	2299	2302	2302	2302
50 M	0	0	0	13	111	257	452	423	220	33	0	0	1509
50 S	0	0	0	13	124	381	833	1257	1476	1509	1509	1509	1509
55 M	0	0	0	3	44	138	304	274	113	7	0	0	883
55 S	0	0	0	3	47	185	489	763	876	883	883	883	883
60 M	0	0	0	0	12	61	174	149	43	0	0	0	441
60 S	0	0	0	0	12	74	248	397	440	441	441	441	441

Corn Growing Degree Days
50 M	1	4	24	97	234	333	473	457	330	131	10	1	2095
50 S	1	5	28	125	360	693	1166	1622	1952	2083	2093	2095	2095

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