IRON MOUNTAIN, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(044297) IRON MOUNTAIN
From Year=1948 To Year=2006
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	59	131	285	492	776	1028	1234	1182	958	633	245	61	7084
57	35	94	232	433	714	968	1172	1120	898	572	197	35	6470
60	14	52	160	348	621	878	1079	1027	808	480	131	13	5612
65	2	14	71	218	468	728	924	872	658	333	51	2	4342
70	0	2	24	114	323	578	769	717	509	201	11	0	3248

Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Table updated on Jul 28, 2006
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