ROSALIA, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(457180) ROSALIA
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	7	18	66	193	410	580	815	816	549	251	45	7	3757
40 S	7	25	91	284	694	1274	2089	2905	3454	3706	3750	3757	3757
45 M	1	3	20	95	267	431	660	662	402	136	12	1	2688
45 S	1	4	24	119	386	817	1476	2138	2539	2675	2688	2688	2688
50 M	0	0	4	39	151	287	505	507	265	62	2	0	1822
50 S	0	0	4	44	195	482	986	1493	1758	1820	1822	1822	1822
55 M	0	0	0	13	72	164	353	355	152	22	0	0	1131
55 S	0	0	0	13	85	249	602	957	1109	1131	1131	1131	1131
60 M	0	0	0	3	27	78	215	217	72	6	0	0	617
60 S	0	0	0	3	30	108	322	540	611	617	617	617	617

Corn Growing Degree Days
50 M	1	7	37	119	244	348	509	510	354	171	19	1	2319
50 S	1	8	45	165	409	757	1266	1775	2129	2300	2318	2319	2319

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