Written by Theresa Rose on July 6, 2016

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

Iowa received a welcome break from the heat this past week. Temperatures were above normal across most of the state on Monday (27th) but were below normal for the remainder of the period, particularly over the weekend. Donnellson recorded a high of 95 degrees on Monday while much of southern Iowa saw daytime high temperatures only in the mid-sixties on both Saturday (2nd) and Sunday (3rd). Lowest minimum temperatures were 47 degree readings at Elkader on Wednesday (29th) morning and at Cresco, Elkader and Estherville on Sunday (3rd) morning. Temperatures for the week as a whole averaged 6 to 8 degrees below normal over the northeast to 2 to 3 degrees subnormal over the far southwest with a statewide average of 5.6 degrees less than normal. Rainfall amounts were highly variable, but in a reverse from recent weeks were generally greatest over the southwest and least in the northeast. There were some isolated thunderstorms over southwestern Iowa on Monday (27th) evening, including some that brought a destructive combination of high winds and hail to portions of Mills and Fremont counties. Thunderstorms covered parts of western Iowa on Wednesday (29th) with some damaging wind and hail in portions of Harrison and Pottawattamie counties. Thunderstorms were scattered over much of the state on Thursday (30th) with a band of heavy rain centered over Carroll where 3.83 inches of rain fell in the pre-dawn hours. Friday (1st) was dry in most areas while Saturday (2nd) brought widespread rain to southern and southwestern Iowa with heaviest rains in parts of Mills and Montgomery counties. The reporting week ended with mostly dry weather on Sunday (3rd). Rain totals for the week varied from only sprinkles at Pocahontas and Dyersville to 4.20 inches near Hastings in Mills County. The statewide average precipitation was 0.70 inches while normal for the week is 1.11 inches.