MADERA, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(045233) MADERA
From Year=1928 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	622	420	327	172	47	6	0	0	7	93	367	607	2667
60	467	280	184	75	12	1	0	0	1	30	226	452	1728
57	375	200	114	39	4	0	0	0	0	13	152	361	1257
55	315	151	77	23	2	0	0	0	0	6	110	301	984
50	176	56	19	4	0	0	0	0	0	1	37	163	455

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