The mean temperature for December was 20.7°F, which is 5.0°F above the average of 15.7°F. The high temperature for the month was 44°F which occurred on two days, December 15th and 16th. The low temperature for the month was -23°F which occurred on two days, December 29th and 30th. This, according to data collected by the West Central Research and Outreach Center at the University of Minnesota, Morris.
The highest temperature recorded in December at the WCROC from 1886 to 2017 was 69°F on December 6, 1939. The lowest temperature recorded historically was -35°F which occurred on December 22, 2000.
Precipitation for the month totaled 1.02 inches, which is 0.34 inches above the average of 0.68 inches. A total of 11.7 inches of snow fell. A snowfall record was set on December 27thwith 4.3 inches. The previous record was 3.5 inches set in 1988. Along with that record, we also broke the record for daily precipitation for that day. The old record was 0.30 inches set in 1959 which was beaten by the new record of 0.38 inches. Currently, we have 12 inches of snow on the ground. The frost depth was reported at 12.5 inches on November 30th and 17 inches on December 31st.