[10] Clear Lake has a dry-winter humid continental climate (Köppen Dwb).

35.7% of all households were made up of individuals, and 18.5% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 99.03% White, 0.15% Native American, 0.30% Asian, and 0.52% from two or more races.

33.8% of all households were made up of individuals, and 18.4% had someone living alone who was 65 years of age or older.

The Crystal Springs Ranch Rodeo is held the end of June each year, drawing thousands of people to the town.

It is held in the nation's most natural rodeo bowl in the Coteau Hills, a native grassland prairie formed by glaciers.

During the rodeo, visitors and residents alike enjoy camping, community garage and yard sales, and a parade.