GANADO, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(023303) GANADO
From Year=1929 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	3	16	76	227	476	736	960	904	661	346	68	8	4482
40 S	3	19	95	322	798	1534	2494	3398	4059	4405	4474	4482	4482
45 M	0	2	23	119	328	586	805	749	512	211	21	1	3356
45 S	0	2	25	143	471	1057	1863	2611	3123	3334	3355	3356	3356
50 M	0	0	4	46	194	437	650	594	364	100	4	0	2391
50 S	0	0	4	49	243	680	1330	1923	2287	2387	2391	2391	2391
55 M	0	0	0	11	86	290	495	439	221	31	0	0	1574
55 S	0	0	0	11	97	387	883	1321	1543	1574	1574	1574	1574
60 M	0	0	0	1	23	159	340	284	101	5	0	0	913
60 S	0	0	0	1	24	183	523	808	908	913	913	913	913

Corn Growing Degree Days
50 M	11	32	100	210	355	494	614	581	433	268	94	21	3214
50 S	11	43	143	353	708	1202	1816	2397	2830	3098	3193	3214	3214

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