Iowa Preliminary Weather Summary
By: Harry J. Hillaker, State Climatologist - 10/11/2017
It was a very wet week across most of Iowa excepting small portions of east central and southeast Iowa. A very slow moving cold front was the focus for two extended periods of rainfall.
The first episode began in western Iowa on Sunday (1st) afternoon and finally departed southeast Iowa on Wednesday (4th) morning. The second period of rain moved into western Iowa on Thursday (5th) morning and finally exited northeast Iowa on Saturday
(7th) afternoon. Both rain periods brought the heavier and more persistent rainfall to western sections of the state.
Weekly rain totals varied from 0.32 inches at Bettendorf to 6.94 inches north of New Market in Taylor County. Rain totals of 3 to 5 inches were common over the northwest one-half of Iowa while amounts were mostly under one inch east of a Dubuque/Iowa
City/Fairfield line. The statewide average rain amount was 3.05 inches while normal for the week is 0.66 inches. A higher statewide average rain total was last recorded for the week ending July 3, 2014.
Meanwhile temperatures were above normal statewide excepting portions of northwest Iowa on Wednesday when Spencer Airport recorded a morning low temperature of 38 degrees. Highest temperatures were recorded across southeastern Iowa on Monday
(2nd) with 88 degrees readings at Burlington, Indianola, Iowa City, Oskaloosa and Ottumwa. Temperatures for the week as a whole averaged 4 to 6 degrees above normal over the northwest and 8 to 10 degrees above normal over the southeast with a
statewide average of 7.9 degrees above normal.