DINNEHOTSO, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(022545) DINNEHOTSO
From Year=1950 To Year=1974
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	28	165	361	696	973	1158	1098	772	426	77	15	5777
40 S	7	35	200	561	1257	2230	3388	4486	5259	5685	5761	5777	5777
45 M	1	5	73	225	541	823	1003	943	622	279	25	4	4545
45 S	1	6	79	304	846	1669	2672	3615	4237	4516	4541	4545	4545
50 M	0	1	23	112	389	673	848	788	473	155	6	1	3468
50 S	0	1	24	135	525	1197	2046	2834	3306	3462	3467	3468	3468
55 M	0	0	5	39	248	523	693	633	326	66	1	0	2535
55 S	0	0	5	45	293	816	1509	2142	2468	2534	2535	2535	2535
60 M	0	0	1	9	128	374	538	478	190	16	0	0	1734
60 S	0	0	1	9	137	511	1050	1528	1718	1734	1734	1734	1734

Corn Growing Degree Days
50 M	15	50	172	295	475	594	698	680	513	328	94	20	3933
50 S	15	65	237	532	1007	1601	2299	2978	3492	3819	3913	3933	3933

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