ST JAMES FILT PLT, MINNESOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(217326) ST JAMES FILT PLANT
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 1587 1290 1042 562 224 41 9 23 164 486 935 1415 7778
60 1432 1149 888 422 125 12 1 4 82 348 785 1260 6507
57 1339 1064 797 342 82 5 0 1 48 273 696 1167 5813
55 1277 1008 736 292 59 3 0 1 31 227 637 1105 5375
50 1122 866 588 183 22 0 0 0 9 130 493 950 4364
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