Iowa, United States Climate Records

Warmest August Days

The warmest August days in Iowa are:

Des Moines, Iowa1983108°F
Des Moines, Iowa1988104°F
Sioux City, Iowa1994102.9°F
Sioux City, Iowa2012102°F
Sioux City, Iowa1988102°F

Coldest August Days

The coldest August days in Iowa were:

Sioux City, Iowa198639°F
Des Moines, Iowa198641°F
Sioux City, Iowa201242.8°F
Sioux City, Iowa200443°F
Sioux City, Iowa200945°F

Wettest August Days

The wettest single days in August occurred:

Des Moines, Iowa19774.7 inches
Des Moines, Iowa19934 inches
Sioux City, Iowa20073.7 inches
Sioux City, Iowa19933.5 inches
Des Moines, Iowa20103.4 inches