SUN CITY, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(048655) SUN CITY
From Year=1973 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	346	383	477	614	802	988	1182	1199	1049	829	503	345	8716
40 S	346	729	1206	1819	2621	3609	4791	5990	7039	7868	8371	8716	8716
45 M	200	246	323	464	647	838	1027	1044	899	674	354	201	6916
45 S	200	445	768	1232	1879	2717	3744	4788	5687	6361	6715	6916	6916
50 M	81	123	182	318	492	688	872	889	749	519	215	87	5215
50 S	81	205	387	704	1196	1884	2756	3645	4394	4913	5128	5215	5215
55 M	18	43	75	187	339	538	717	734	599	366	102	22	3740
55 S	18	61	136	323	662	1200	1917	2651	3250	3616	3718	3740	3740
60 M	1	8	19	87	202	389	562	579	449	222	34	2	2553
60 S	1	9	29	115	317	706	1268	1847	2296	2518	2551	2553	2553

Corn Growing Degree Days
50 M	248	261	304	391	489	584	695	702	635	518	355	273	5455
50 S	248	509	813	1205	1693	2278	2972	3674	4309	4827	5182	5455	5455

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