PORT ANGELES, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(456624) PORT ANGELES
From Year=1948 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	62	77	127	231	395	506	620	620	517	321	142	71	3689
40 S	62	140	267	498	893	1398	2019	2639	3156	3477	3619	3689	3689
45 M	12	14	32	96	241	356	465	465	367	173	45	12	2278
45 S	12	26	58	154	395	751	1216	1682	2049	2221	2266	2278	2278
50 M	1	1	3	23	107	207	310	310	219	60	6	1	1246
50 S	1	2	4	28	134	341	651	962	1180	1240	1246	1246	1246
55 M	0	0	0	3	31	79	159	158	90	9	0	0	530
55 S	0	0	0	3	34	113	272	430	520	530	530	530	530
60 M	0	0	0	0	6	20	50	44	21	0	0	0	142
60 S	0	0	0	0	6	27	76	121	142	142	142	142	142

Corn Growing Degree Days
50 M	8	12	30	82	170	238	322	322	254	118	28	7	1592
50 S	8	20	50	132	302	540	862	1184	1438	1557	1585	1592	1592

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