Watertown, SD weather in May 1991

Temperature for May 1991

In May 1991 the average high temperature in Watertown, SD was 68.8°F, and this was 0.3°F cooler than the average of 69.1°F. The hottest day in May 1991 was 14 May when the temperature reached 89.1°F. Overnight the average temperature in May is 44.5°F and in 1991 the average overnight temperature was 5.5°F warmer at 50.0°F.

Precipitation for May 1991

In May the average monthly rainfall in Watertown, SD is 2.02 inches with rain usually falling on 10 days. In May 1991 there was a total of 2.36 inches of rain, that fell on 9 days.