RENO WFO, NEVADA

Period of Record General Climate Summary - Growing Degree Days

Station:(266791) RENO NWSFO
From Year=1996 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	44	53	200	290	591	838	1154	1094	828	470	164	41	5767
40 S	44	97	297	587	1178	2016	3169	4263	5091	5562	5726	5767	5767
45 M	13	11	104	178	442	688	999	939	678	330	75	13	4470
45 S	13	24	128	306	748	1436	2435	3373	4052	4381	4457	4470	4470
50 M	3	1	42	96	305	540	844	784	530	205	25	2	3376
50 S	3	4	45	141	447	987	1831	2614	3144	3349	3374	3376	3376
55 M	0	0	11	42	191	397	689	629	386	108	5	0	2457
55 S	0	0	11	53	243	641	1329	1958	2344	2452	2456	2457	2457
60 M	0	0	1	13	103	264	534	475	251	45	0	0	1686
60 S	0	0	1	14	117	381	914	1390	1641	1686	1686	1686	1686

Corn Growing Degree Days
50 M	25	35	129	181	362	528	731	698	527	285	95	21	3616
50 S	25	60	189	369	732	1259	1991	2689	3216	3501	3596	3616	3616

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