GISELA, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(023448) GISELA
From Year=1895 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	742	459	423	168	20	0	0	0	10	81	430	751	3084
60	587	317	282	59	3	0	0	0	1	17	280	596	2141
57	494	237	208	27	0	0	0	0	0	3	192	503	1663
55	432	187	165	14	0	0	0	0	0	1	139	441	1377
50	277	90	81	3	0	0	0	0	0	0	48	286	785

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