HUMPTULIPS SALMON HATCH, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(453826) HUMPTULIPS SALMON HATCH
From Year=1987 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	85	84	133	235	382	496	633	645	529	324	137	62	3743
40 S	85	168	302	536	918	1415	2047	2692	3221	3545	3681	3743	3743
45 M	19	21	40	107	231	346	478	490	379	179	45	13	2347
45 S	19	40	80	187	418	764	1242	1732	2111	2289	2334	2347	2347
50 M	1	2	6	34	107	199	323	335	231	69	8	1	1316
50 S	1	4	10	44	151	349	672	1007	1238	1307	1315	1316	1316
55 M	0	0	0	8	37	78	170	181	104	16	0	0	594
55 S	0	0	0	8	45	123	293	474	578	594	594	594	594
60 M	0	0	0	1	10	24	55	59	28	1	0	0	178
60 S	0	0	0	1	11	34	90	149	177	178	178	178	178

Corn Growing Degree Days
50 M	14	35	66	125	207	258	355	371	312	171	43	10	1969
50 S	14	49	116	241	448	706	1061	1432	1744	1916	1959	1969	1969

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