ALEXANDRIA MUNI AP, MINNESOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(210112) ALEXANDRIA FAA AIRPORT
From Year=1940 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	1754	1460	1199	670	311	84	16	36	240	580	1070	1565	8982
60	1599	1318	1044	524	192	30	2	8	135	432	920	1410	7613
57	1506	1234	951	441	134	14	1	2	87	349	830	1317	6864
55	1444	1177	889	387	102	8	0	1	62	297	770	1255	6391
50	1289	1036	736	263	46	1	0	0	23	181	622	1100	5296

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