STEWART MOUNTAIN, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(028214) STEWART MOUNTAIN
From Year=1939 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	371	417	596	787	1089	1323	1534	1485	1272	971	578	366	10789
40 S	371	788	1384	2170	3259	4582	6116	7601	8874	9845	10423	10789	10789
45 M	227	280	442	637	934	1173	1379	1330	1122	816	429	223	8992
45 S	227	507	949	1586	2520	3692	5072	6402	7524	8340	8769	8992	8992
50 M	108	156	295	488	779	1023	1224	1175	972	662	286	105	7274
50 S	108	265	560	1047	1826	2849	4073	5248	6220	6882	7168	7274	7274
55 M	35	64	168	343	624	873	1069	1020	822	508	162	33	5722
55 S	35	100	268	611	1235	2108	3177	4197	5019	5527	5690	5722	5722
60 M	6	16	77	211	471	723	914	865	672	359	71	6	4391
60 S	6	23	99	311	781	1504	2418	3283	3956	4315	4386	4391	4391

Corn Growing Degree Days
50 M	253	281	385	496	670	789	943	921	793	609	385	255	6781
50 S	253	534	919	1415	2085	2874	3817	4739	5531	6141	6526	6781	6781

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