COLLEGEVILLE ST JOHN, MINNESOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(211691) COLLEGEVILLE ST JOHN
From Year=1893 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 1669 1377 1128 619 272 66 11 30 193 529 1009 1474 8377
60 1514 1236 973 475 161 22 1 6 102 385 859 1319 7053
57 1421 1151 880 393 109 10 0 2 63 305 769 1226 6330
55 1359 1094 819 341 81 6 0 1 44 256 710 1164 5875
50 1204 953 667 224 34 1 0 0 15 152 563 1009 4821
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