CANYONLANDS-THE NEEDLE, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(421168) CANYONLANDS THE NEEDLE
From Year=1965 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	8	34	179	365	684	971	1207	1134	811	439	108	11	5952
40 S	8	42	221	586	1270	2241	3448	4583	5394	5833	5941	5952	5952
45 M	1	8	86	234	530	821	1052	979	661	296	43	2	4713
45 S	1	9	95	329	858	1680	2731	3711	4372	4668	4711	4713	4713
50 M	0	1	31	128	381	671	897	824	512	172	11	0	3630
50 S	0	1	32	161	542	1213	2110	2934	3446	3619	3630	3630	3630
55 M	0	0	8	57	245	522	742	669	367	81	2	0	2693
55 S	0	0	8	65	310	832	1574	2244	2610	2692	2693	2693	2693
60 M	0	0	1	17	134	376	587	515	231	27	0	0	1889
60 S	0	0	1	18	153	529	1116	1630	1861	1889	1889	1889	1889

Corn Growing Degree Days
50 M	9	39	152	265	451	612	749	719	528	313	97	11	3944
50 S	9	48	200	465	916	1528	2277	2996	3523	3836	3933	3944	3944

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