AMANDA PARK, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(450158) AMANDA PARK
From Year=1957 To Year=1963
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	72	130	122	263	426	576	727	686	580	378	131	88	4177
40 S	72	202	324	587	1013	1589	2316	3001	3581	3959	4090	4177	4177
45 M	13	39	33	123	272	426	572	531	430	226	41	18	2722
45 S	13	51	84	207	479	905	1477	2008	2437	2663	2704	2722	2722
50 M	0	5	3	39	136	277	417	376	281	95	5	1	1634
50 S	0	6	9	47	183	460	877	1252	1533	1628	1633	1634	1634
55 M	0	0	0	7	58	140	263	221	140	23	0	0	852
55 S	0	0	0	7	65	205	468	689	829	852	852	852	852
60 M	0	0	0	0	25	52	130	83	42	3	0	0	335
60 S	0	0	0	0	25	77	207	289	332	335	335	335	335

Corn Growing Degree Days
50 M	10	34	50	124	230	323	434	398	324	172	35	11	2147
50 S	10	44	95	219	449	772	1206	1605	1929	2101	2136	2147	2147

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