GREAT SAND DUNES N M, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(053541) GREAT SAND DUNES N M
From Year=1950 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	1320	1087	964	686	419	142	39	79	254	586	967	1275	7818
60	1165	946	809	536	270	58	5	14	125	431	817	1120	6295
57	1072	861	716	446	192	30	1	4	70	340	727	1027	5485
55	1010	805	654	387	147	17	1	1	45	281	667	965	4980
50	855	663	499	249	67	3	0	0	13	156	518	810	3833

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