Written by Theresa Rose on May 19, 2015

By Harry Hillaker, State Climatologist, Iowa Department of Agriculture & Land Stewardship

The past week began with widespread light to moderate rain from Sunday (10th) afternoon into Monday (11th) morning. Tuesday (12th) was dry while rain moved back into western Iowa Wednesday (13th) night. Rain fell over most of the state on Thursday, Friday and Saturday with the greatest amounts falling over west central and southwest Iowa. Finally, there were a few showers and thunderstorms on Sunday (17th). Rain totals for the week ranged from 0.45 inches at the Cedar Rapids Airport to 4.45 inches at the Audubon Airport. The statewide average precipitation was 1.32 inches while normal for the week is 1.05 inches. Meanwhile, cooler than normal weather prevailed from Monday through Thursday, with the coolest weather on Monday when highs were only in the mid-forties over northwest Iowa. Much warmer and more humid weather quickly returned for the weekend before a cold front swept across the state on Sunday. Temperature extremes ranged from a Tuesday morning low of 33 degrees at Elkader to afternoon highs of 83 degrees at Davenport and Maquoketa on Saturday (16th) and at Bellevue and Clinton on Sunday afternoon (17th). Temperatures for the week as a whole averaged 0.4 degrees above normal. Severe thunderstorms were scattered across portions of northwest and west central Iowa on Sunday (10th) with greatest damage from high winds, large hail and a tornado in Calhoun County. There were also a few reports of damaging winds in central and south central Iowa early Sunday (17th) morning.