Iowa, United States Climate Records

Warmest December Days

The warmest December days in Iowa are:

Des Moines, Iowa198469.1°F
Sioux City, Iowa199869.1°F
Des Moines, Iowa201269.1°F
Des Moines, Iowa197366.9°F
Des Moines, Iowa197566.9°F

Coldest December Days

The coldest December days in Iowa were:

Sioux City, Iowa1989-24°F
Des Moines, Iowa1989-22°F
Sioux City, Iowa1983-20.9°F
Des Moines, Iowa1983-18.9°F
Sioux City, Iowa1978-18.9°F

Wettest December Days

The wettest single days in December occurred:

Sioux City, Iowa20092 inches
Des Moines, Iowa19941.6 inches
Des Moines, Iowa19821.6 inches
Des Moines, Iowa19901.3 inches
Des Moines, Iowa19731.2 inches