CLALLAM BAY SLIP POINT, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(451465) CLALLAM BAY SLIP POINT
From Year=1948 To Year=1976
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	52	64	84	163	301	402	475	487	432	287	143	81	2971
40 S	52	116	200	363	665	1066	1541	2028	2460	2748	2890	2971	2971
45 M	9	11	16	49	151	252	320	332	283	142	43	17	1623
45 S	9	20	36	85	236	488	807	1139	1422	1564	1607	1623	1623
50 M	0	1	1	8	45	109	165	178	139	41	4	1	693
50 S	0	1	2	10	55	164	330	507	647	688	692	693	693
55 M	0	0	0	1	11	21	42	47	42	5	0	0	170
55 S	0	0	0	1	12	34	76	123	165	170	170	170	170
60 M	0	0	0	0	3	3	6	4	9	0	0	0	25
60 S	0	0	0	0	3	6	12	15	24	25	25	25	25

Corn Growing Degree Days
50 M	7	13	23	58	117	160	204	213	205	118	35	13	1164
50 S	7	20	42	100	217	377	581	794	999	1117	1152	1164	1164

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