ST PAUL, MINNESOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(217377) ST PAUL
From Year=1956 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1577	1280	1039	550	231	49	7	20	164	480	946	1405	7747
60	1422	1139	884	411	129	15	1	3	80	340	796	1250	6470
57	1329	1054	792	333	82	6	0	1	48	264	706	1157	5772
55	1267	998	731	284	58	3	0	0	32	218	647	1095	5333
50	1112	857	581	176	21	0	0	0	9	122	502	941	4320

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