TRACY, MINNESOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(218323) TRACY
From Year=1912 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	1597	1319	1077	591	249	55	8	24	168	492	964	1427	7972
60	1442	1178	922	451	148	19	1	5	87	355	814	1272	6695
57	1349	1093	830	371	102	9	0	1	55	281	725	1179	5996
55	1287	1037	769	321	77	5	0	0	38	236	665	1117	5554
50	1132	895	620	210	33	1	0	0	14	144	521	962	4532

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