Particularly where skies were clear Sunday morning, air temperatures really bottomed out in the 30s making for a chilly start to the day. Of the airport weather stations, Sioux City recorded the lowest temperature of 30 degrees, which set a new record low for the date. The featured map presents a smoothed analysis of Sunday low temperatures from available airport weather stations. Where temperatures got into the mid 30s at the airports, frost was likely common in susceptible low laying areas nearby. Temperatures did warm nicely on Sunday thanks to sunshine, so hopefully any damage was limited.

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