ABERDEEN 20NNE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(450013) ABERDEEN 20 NNE WISHKA
From Year=1927 To Year=2004
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	47	63	110	199	370	510	652	661	521	299	110	48	3589
40 S	47	109	220	419	789	1298	1950	2611	3132	3431	3541	3589	3589
45 M	9	14	31	87	221	360	497	506	371	157	33	9	2293
45 S	9	22	53	140	361	721	1218	1724	2095	2251	2284	2293	2293
50 M	0	1	3	28	105	214	342	351	224	57	4	0	1329
50 S	0	2	5	32	137	351	693	1044	1268	1325	1329	1329	1329
55 M	0	0	0	5	40	96	193	199	98	10	0	0	641
55 S	0	0	0	5	45	141	334	533	631	641	641	641	641
60 M	0	0	0	0	11	33	79	78	25	0	0	0	228
60 S	0	0	0	0	12	45	125	202	227	228	228	228	228

Corn Growing Degree Days
50 M	3	17	49	99	194	267	368	374	283	132	23	4	1813
50 S	3	21	70	168	363	629	997	1371	1654	1786	1809	1813	1813

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