WUPATKI NATL MONUMENT, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(029542) WUPATKI NATL MONUMENT
From Year=1948 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	41	114	283	499	793	1073	1254	1164	933	598	203	42	6999
40 S	41	155	438	937	1730	2804	4058	5221	6155	6753	6956	6999	6999
45 M	11	44	159	356	638	923	1099	1009	783	447	101	11	5584
45 S	11	55	215	571	1209	2133	3232	4240	5024	5471	5572	5584	5584
50 M	2	11	72	225	485	773	944	854	633	304	37	2	4343
50 S	2	13	85	310	795	1568	2512	3366	3999	4303	4341	4343	4343
55 M	0	1	23	119	338	624	789	699	484	178	8	0	3263
55 S	0	2	25	144	482	1106	1895	2594	3077	3255	3263	3263	3263
60 M	0	0	4	48	207	475	634	544	337	81	1	0	2330
60 S	0	0	4	52	259	734	1368	1912	2248	2329	2330	2330	2330

Corn Growing Degree Days
50 M	36	92	204	331	512	677	797	755	605	375	139	35	4558
50 S	36	128	332	663	1175	1852	2649	3405	4009	4384	4523	4558	4558

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 Jul 28, 2006
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