HURON RGNL AP, SOUTH DAKOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(394127) HURON WB AIRPORT
From Year=1948 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	1588	1278	1043	570	253	52	8	19	176	515	974	1418	7894
60	1433	1137	889	429	144	16	1	3	92	372	824	1263	6602
57	1340	1052	797	349	94	7	0	1	57	293	734	1170	5895
55	1278	996	736	299	69	4	0	0	40	245	675	1108	5450
50	1123	855	587	188	27	1	0	0	13	145	528	953	4419

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