National Weather Service United States Department of Commerce
...All-time record April low temperatures, record low highs, and
record nighttime lows set across the region...

All-time April Low Temperatures

City...........Low Temp...Previous Record...Year Set
Aberdeen.........-6...........-2..............1975
Pierre............0............1..............1936

Record Low Highs April 3rd

City...........High Temp...Previous Record..Year Set
Aberdeen..........20...........25..............2007
Pierre............22...........30..............1936
Mobridge..........23...........27..............2007

Record Lows Tied April 3rd

City............Low Temp...Previous Record...Year Set
Aberdeen..........-2............-2.............1975

Record Lows April 4th

City............Low Temp....Previous Record...Year Set
Aberdeen..........-6.............5.............1920
Watertown.........-3.............7.............1995
Pierre.............0............12.............1968
Mobridge...........1............11.............2007