Written by Theresa Rose on October 12, 2016

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

Unseasonably warm weather prevailed through Thursday (6th) when a strong cold front passed through the state resulting in slightly cooler than normal weather for Friday (7th) and the weekend. Showers and thunderstorms were widespread over the western two-thirds of Iowa on Tuesday (4th) with a few localized rain amounts in excess of two inches over the west one-quarter of the state. Light rain fell over eastern Iowa on Wednesday (5th) morning with additional rain over the southeast one-third of the state on Wednesday night into Thursday (6th) morning when a very localized downpour of 4.98 inches of rain fell in Keokuk. Rain fell nearly statewide between Thursday afternoon and Friday morning with a few rain totals over an inch across east central and southeast Iowa. Severe winds also struck parts of Muscatine and Scott counties on Thursday night. Rain totals for the week varied from only a trace at Manchester to 5.66 inches at Keokuk. The statewide average precipitation was 1.03 inches while normal for the week is 0.66 inches. Temperatures averaged from one to two degrees above normal over northwest Iowa to four to six degrees above normal over the southeast with a statewide average of 3.6 degrees above normal. The season’s first freeze was recorded at Little Sioux on Friday (7th) morning with a 32 degree reading. Freezes were recorded across scattered parts of the north one-third of Iowa on both Saturday (8th) and Sunday (9th) mornings with the lowest temperatures of 30 degrees at Cresco and Estherville on Sunday. On the other extreme 82 degree highs were recorded at Donnellson and Centerville on Tuesday (4th) and at Donnellson and Burlington on Wednesday (5th).