WILBUR, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(459238) WILBUR
From Year=1900 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	1	5	56	205	434	615	843	812	544	242	26	3	3787
40 S	1	6	63	268	702	1316	2159	2971	3515	3758	3784	3787	3787
45 M	0	0	14	100	286	465	688	657	396	128	5	0	2740
45 S	0	0	15	115	401	866	1553	2211	2607	2735	2740	2740	2740
50 M	0	0	2	40	160	319	533	503	259	52	1	0	1868
50 S	0	0	2	42	202	521	1054	1556	1815	1867	1868	1868	1868
55 M	0	0	0	12	75	188	381	351	144	16	0	0	1167
55 S	0	0	0	12	87	275	656	1007	1151	1167	1167	1167	1167
60 M	0	0	0	3	27	91	238	212	64	3	0	0	638
60 S	0	0	0	3	30	121	359	571	635	638	638	638	638

Corn Growing Degree Days
50 M	0	3	45	154	293	397	538	522	368	177	12	0	2508
50 S	0	3	48	201	494	891	1429	1950	2319	2495	2508	2508	2508

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