CANYONLANDS THE NEEDLE, UTAH

Period of Record General Climate Summary - Heating Degree Days

Station:(421168) CANYONLANDS THE NEEDLE
From Year=1965 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1119	823	634	394	145	20	0	0	56	347	734	1078	5352
60	964	682	481	258	69	5	0	0	21	213	584	923	4198
57	871	597	390	188	39	2	0	0	10	148	494	830	3569
55	809	540	332	147	25	1	0	0	5	112	435	768	3176
50	654	400	201	68	7	0	0	0	1	47	294	613	2284

Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. This is done for each day of the month and summed.
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