FT RIPLEY, MINNESOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(212904) FORT RIPLEY
From Year=1889 To Year=1990
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1803	1518	1231	683	372	121	36	73	250	644	1113	1581	9425
60	1648	1377	1076	538	242	51	8	25	144	496	963	1426	7994
57	1555	1292	983	453	176	25	3	11	96	411	873	1333	7212
55	1493	1235	922	398	138	14	1	6	71	358	813	1271	6721
50	1338	1094	768	272	67	2	0	1	28	239	664	1116	5590

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