LAS VEGAS MCCARRAN AP, NEVADA

Period of Record General Climate Summary - Heating Degree Days

Station:(264436) LAS VEGAS WSO AIRPORT
From Year=1937 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	592	403	263	91	15	0	0	0	1	55	325	587	2333
60	437	266	143	36	3	0	0	0	0	20	194	433	1531
57	345	191	88	18	1	0	0	0	0	9	130	341	1123
55	285	146	60	10	0	0	0	0	0	5	96	281	883
50	154	63	18	1	0	0	0	0	0	1	34	145	416

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