ALTON, UTAH

Period of Record General Climate Summary - Heating Degree Days

Station:(420086) ALTON
From Year=1915 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	1170	993	934	668	436	182	35	60	224	534	853	1112	7202
60	1015	852	779	518	286	83	5	11	104	380	703	957	5692
57	922	767	686	428	205	45	1	3	56	291	613	864	4881
55	860	710	624	370	158	28	0	1	35	235	553	802	4376
50	705	569	470	234	72	7	0	0	9	121	404	647	3237

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