Hottest Cities in Iowa.
Cities in Iowa with the highest average summer temperatures, from 30-year averages at the nearest weather station.
42 cities ranked · See the national list
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| # | City | Avg Summer High |
|---|---|---|
| 1 | Council Bluffs | 86°F |
| 2 | Des Moines | 84°F |
| 3 | Sioux City | 84°F |
| 4 | Iowa City | 84°F |
| 5 | Ankeny | 84°F |
| 6 | West Des Moines | 84°F |
| 7 | Marion | 84°F |
| 8 | Ottumwa | 84°F |
| 9 | Muscatine | 84°F |
| 10 | Coralville | 84°F |
| 11 | Altoona | 84°F |
| 12 | North Liberty | 84°F |
| 13 | Indianola | 84°F |
| 14 | Norwalk | 84°F |
| 15 | Oskaloosa | 84°F |
| 16 | Pleasant Hill | 84°F |
| 17 | Davenport | 83°F |
| 18 | Waterloo | 83°F |
| 19 | Dubuque | 83°F |
| 20 | Urbandale | 83°F |
| 21 | Cedar Falls | 83°F |
| 22 | Bettendorf | 83°F |
| 23 | Waukee | 83°F |
| 24 | Johnston | 83°F |
| 25 | Burlington | 83°F |
| 26 | Clive | 83°F |
| 27 | Grimes | 83°F |
| 28 | Newton | 83°F |
| 29 | Pella | 83°F |
| 30 | Le Mars | 83°F |
| 31 | Waverly | 83°F |
| 32 | Carroll | 83°F |
| 33 | Fort Madison | 83°F |
| 34 | Ames | 82°F |
| 35 | Marshalltown | 82°F |
| 36 | Clinton | 82°F |
| 37 | Boone | 82°F |
| 38 | Spencer | 82°F |
| 39 | Cedar Rapids | 81°F |
| 40 | Fort Dodge | 81°F |
| 41 | Mason City | 80°F |
| 42 | Storm Lake | 80°F |
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