TRENTON, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(428828) TRENTON
From Year=1948 To Year=2003
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	1	5	54	197	424	661	890	859	556	232	31	4	3914
40 S	1	6	60	257	681	1342	2233	3091	3648	3879	3911	3914	3914
45 M	0	1	14	101	282	512	735	704	410	116	6	0	2881
45 S	0	1	15	116	398	909	1645	2348	2758	2874	2881	2881	2881
50 M	0	0	2	41	163	365	580	549	272	41	1	0	2016
50 S	0	0	2	43	206	572	1152	1701	1973	2014	2016	2016	2016
55 M	0	0	0	12	76	230	426	395	151	10	0	0	1300
55 S	0	0	0	12	88	318	745	1139	1290	1300	1300	1300	1300
60 M	0	0	0	1	24	116	276	246	61	1	0	0	725
60 S	0	0	0	1	25	141	418	664	725	725	725	725	725

Corn Growing Degree Days
50 M	0	6	54	165	295	436	565	552	402	220	37	3	2735
50 S	0	6	60	225	520	956	1521	2073	2475	2695	2732	2735	2735

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