SPARKS, NEVADA

Period of Record General Climate Summary - Growing Degree Days

Station:(267697) SPARKS
From Year=1988 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	33	57	189	308	538	754	1009	953	719	420	130	34	5147
40 S	33	90	280	588	1126	1880	2889	3842	4562	4982	5112	5147	5147
45 M	8	13	86	182	386	604	854	798	569	275	52	10	3836
45 S	8	20	106	288	673	1277	2132	2930	3499	3774	3826	3836	3836
50 M	1	1	25	86	244	455	699	643	420	147	12	1	2734
50 S	1	2	27	113	357	812	1511	2154	2574	2720	2732	2734	2734
55 M	0	0	3	30	128	310	544	488	274	55	1	0	1834
55 S	0	0	3	33	161	471	1016	1504	1778	1833	1834	1834	1834
60 M	0	0	0	6	54	179	390	334	144	13	0	0	1120
60 S	0	0	0	6	60	240	630	964	1108	1120	1120	1120	1120

Corn Growing Degree Days
50 M	39	63	159	227	360	482	616	590	486	334	122	34	3512
50 S	39	103	262	489	849	1331	1947	2537	3022	3356	3478	3512	3512

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