The temperatures will take a dive this week with highs only in the 50s and 60s. That will end up being at least 10 to 15 degrees below average.
The cold weather in mid-May is something that has happened before following record cold winters. Keep in mind, Sioux Falls just got out of our tenth coldest winter.
1997 was the ninth coldest in Sioux Falls. That year set two record cold lows in April and three in May. 1899 was the seventh coldest in Sioux Falls. That year set three record lows in April and produced near record lows twice in May. 1904 was the sixth coldest winter in Sioux Falls. That year produced a record low in April and May.
So far this year, Sioux Falls has set a record low in April but none in May. Even though we are not forecasting record lows later this week, there will definitely be a chill in the air with possible frost.