ST GEORGE, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(427516) ST GEORGE
From Year=1862 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	76	176	380	597	890	1134	1373	1321	1028	673	266	74	7986
40 S	76	251	631	1228	2118	3251	4624	5945	6973	7647	7913	7986	7986
45 M	20	79	238	448	735	984	1218	1166	878	519	144	19	6448
45 S	20	99	337	786	1520	2504	3722	4888	5766	6285	6429	6448	6448
50 M	2	24	123	307	581	834	1063	1011	728	368	58	3	5101
50 S	2	26	149	456	1036	1870	2933	3944	4672	5040	5098	5101	5101
55 M	0	4	47	181	429	684	908	856	579	229	15	0	3932
55 S	0	4	51	232	661	1345	2253	3109	3687	3916	3931	3932	3932
60 M	0	1	12	85	286	534	753	701	430	116	2	0	2919
60 S	0	1	12	97	383	917	1670	2371	2801	2917	2919	2919	2919

Corn Growing Degree Days
50 M	83	147	279	401	563	680	820	801	636	462	224	82	5179
50 S	83	229	509	910	1473	2153	2973	3774	4410	4872	5096	5179	5179

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