PAGE, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(026180) PAGE
From Year=1957 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	18	80	282	510	835	1120	1338	1254	959	595	182	23	7196
40 S	18	98	380	890	1725	2845	4183	5436	6395	6990	7173	7196	7196
45 M	2	25	158	366	680	970	1183	1099	809	443	85	5	5824
45 S	2	27	185	551	1231	2201	3384	4482	5291	5734	5819	5824	5824
50 M	0	4	72	235	527	820	1028	944	659	300	28	1	4616
50 S	0	4	76	311	838	1658	2686	3630	4288	4588	4616	4616	4616
55 M	0	0	24	130	379	670	873	789	509	173	4	0	3551
55 S	0	0	25	155	533	1203	2076	2865	3374	3547	3551	3551	3551
60 M	0	0	5	56	244	520	718	634	363	80	0	0	2619
60 S	0	0	5	60	304	824	1542	2176	2538	2619	2619	2619	2619

Corn Growing Degree Days
50 M	11	47	164	305	530	724	863	825	629	349	96	12	4555
50 S	11	58	222	528	1058	1782	2644	3469	4099	4447	4543	4555	4555

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