PHILMONT RCH, NEW MEXICO

Period of Record General Climate Summary - Heating Degree Days

Station:(296797) PHILMONT RANCH
From Year=1941 To Year=1961
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1030	902	847	621	353	104	36	51	186	495	786	997	6406
60	875	761	692	471	209	36	3	4	68	342	636	842	4938
57	782	676	599	382	138	17	0	0	29	254	546	749	4172
55	720	619	537	324	100	9	0	0	15	200	486	687	3697
50	565	479	384	195	38	1	0	0	2	96	339	532	2631

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