PIERCE FERRY 17 SSW, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(026538) PIERCE FERRY 17 SSW
From Year=1963 To Year=1984
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	776	599	506	314	97	5	0	0	15	168	487	758	3727
60	621	458	357	195	45	1	0	0	5	86	343	603	2712
57	528	374	275	137	26	0	0	0	2	54	263	510	2169
55	467	319	226	105	16	0	0	0	1	38	214	449	1836
50	315	194	121	45	3	0	0	0	0	14	117	301	1110

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