WATERTOWN RGNL AP, SOUTH DAKOTA

Period of Record General Climate Summary - Cooling Degree Days

Station:(398932) WATERTOWN FAA AP
From Year=1893 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 0 0 1 22 125 321 498 434 184 33 0 0 1618
57 0 0 1 14 95 268 436 374 147 22 0 0 1356
60 0 0 0 7 60 195 346 288 99 11 0 0 1005
65 0 0 0 1 23 99 207 162 46 2 0 0 540
70 0 0 0 0 6 39 99 71 18 0 0 0 234
Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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