Temperature for December 2006
In December 2006 the average high temperature in Watertown, SD was 36.9°F, and this was 10.0°F warmer than the average of 26.9°F. The hottest day in December 2006 was 9 December when the temperature reached 55.0°F. Overnight the average temperature in December is 8.9°F and in 2006 the average overnight temperature was 8.4°F warmer at 17.3°F.