By Harry Hillaker, State Climatologist, Iowa Department of Agriculture & Land Stewardship
Iowa experienced a warm and humid week with scattered thunderstorms nearly every day. Temperatures were above normal throughout the reporting week with the highest readings on Friday (30th) and Saturday (31st). Thunderstorms were scattered over the southwest two-thirds of the state on Sunday (25th) with a few west central and southwest locations receiving over an inch of rain. Thunderstorms were scattered over most of Iowa on Monday (26th) and Tuesday (27th) with heavy rains falling over portions of Woodbury, Monona and Crawford counties of west central Iowa. There were just a few isolated thunderstorms, mostly across southern Iowa, on Wednesday, Thursday and Friday. Thunderstorms were a little more numerous on Saturday (31st) into Sunday (1st) morning but only a few far northwest Iowa locations saw more than an inch of rain with these storms. Rain totals for the week varied from only a trace at Keosauqua to an even five inches near Castana in Monona County. The statewide average precipitation was 0.66 inches or not quite two-thirds of the weekly normal of 1.07 inches. Temperature extremes varied from a Thursday (29th) morning low of 49 degrees at Cresco to afternoon highs of 90 degrees at Sibley and Hawarden on Friday and Davenport, Iowa City, Lowden and Sioux Center on Saturday. Temperatures for the week as a whole averaged 8.0 degrees above normal.