FT SUMNER, NEW MEXICO

Period of Record General Climate Summary - Heating Degree Days

Station:(293294) FORT SUMNER
From Year=1914 To Year=2011
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	833	642	494	240	65	3	0	1	29	219	550	810	3885
60	678	501	344	129	23	1	0	0	10	111	402	655	2855
57	585	417	262	82	12	0	0	0	5	67	317	563	2311
55	524	363	213	59	7	0	0	0	3	46	264	502	1982
50	375	238	115	23	2	0	0	0	1	17	152	354	1277

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 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