CROWN KING, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(022329) CROWN KING
From Year=1914 To Year=1995
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	40	65	147	334	549	863	1012	933	744	460	172	71	5392
40 S	40	105	252	586	1136	1998	3010	3943	4687	5148	5320	5392	5392
45 M	5	16	64	201	397	713	857	778	594	313	75	20	4032
45 S	5	21	84	285	682	1395	2251	3030	3624	3937	4012	4032	4032
50 M	0	2	20	95	254	563	702	623	445	183	20	2	2909
50 S	0	3	23	118	371	934	1636	2259	2704	2887	2907	2909	2909
55 M	0	0	4	30	134	414	547	468	299	80	3	0	1978
55 S	0	0	4	34	168	582	1128	1597	1896	1976	1978	1978	1978
60 M	0	0	0	5	50	268	392	314	163	26	0	0	1217
60 S	0	0	0	5	55	323	714	1028	1191	1217	1217	1217	1217

Corn Growing Degree Days
50 M	43	64	123	243	374	551	654	605	477	308	137	69	3649
50 S	43	107	230	473	847	1399	2052	2658	3135	3444	3581	3649	3649

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