IOWA PRELIMINARY WEATHER SUMMARYWritten by Theresa Rose on May 27, 2015
By Harry Hillaker, State Climatologist, Iowa Department of Agriculture & Land Stewardship
The past reporting week began with unseasonably cool weather prevailing from Monday (18th) through Friday (22nd). Daytime high temperatures were only in the mid-forties over parts of northern Iowa on Monday and Wednesday. Afternoon temperatures climbed into the seventies over most of the state on Thursday and Friday while overnight lows remained unseasonably low. Temperatures edged slightly above normal across most of the state over the weekend. Temperature extremes ranged from a Thursday morning low of 33 degrees at Belle Plaine to a Sunday (24th) afternoon high of 81 degrees at Donnellson. Temperatures for the week as a whole averaged 6.5 degrees below normal. Meanwhile, there was scattered light rain on Sunday (17th) with some isolated higher amounts over parts of north central Iowa. Dry weather prevailed in most areas on Monday and Tuesday with light rain over much of Iowa on Wednesday. All of Iowa was dry on Thursday while light rain fell across far western areas of the state on Friday and Saturday. Rain fell over all of Iowa on Sunday (24th) to close out the reporting week, but with some of this rain coming too late to be reflected in this week’s report. Weekly rain totals varied from only 0.03 inches at Cresco and Marquette to 1.71 inches at Britt and 1.55 inches at Mount Ayr. The statewide average precipitation was 0.45 inches while normal for the week is 1.05 inches.