BLACK ROCK, NEW MEXICO

Period of Record General Climate Summary - Heating Degree Days

Station:(291018) BLACK ROCK
From Year=1908 To Year=1949
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1141	871	776	522	283	60	4	8	99	417	774	1058	6013
60	986	730	621	373	147	17	0	1	30	269	624	903	4699
57	893	646	529	285	86	6	0	0	12	190	534	810	3990
55	831	589	467	232	57	3	0	0	7	144	474	748	3550
50	676	448	315	119	18	0	0	0	2	59	326	593	2555

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