PORT ANGELES, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(456624) PORT ANGELES
From Year=1933 To Year=2008
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	61	73	122	229	390	499	613	611	506	320	137	72	3633
40 S	61	134	257	485	876	1375	1987	2598	3105	3424	3561	3633	3633
45 M	11	13	30	95	236	349	458	456	357	172	41	12	2229
45 S	11	24	54	149	385	734	1191	1647	2004	2175	2217	2229	2229
50 M	1	1	3	22	102	200	303	301	209	59	5	1	1204
50 S	1	1	4	26	127	327	630	931	1140	1198	1203	1204	1204
55 M	0	0	0	3	28	73	151	149	83	9	0	0	496
55 S	0	0	0	3	31	104	255	404	487	496	496	496	496
60 M	0	0	0	0	5	18	46	40	19	0	0	0	129
60 S	0	0	0	0	6	23	69	109	128	129	129	129	129

Corn Growing Degree Days
50 M	7	11	28	78	164	229	313	313	244	115	26	8	1535
50 S	7	18	46	123	288	517	830	1143	1386	1501	1527	1535	1535

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