[3] Clermont has a humid continental climate (Köppen Dfb), with warm summers and cold, snowy winters.

As of the census[7] of 2000, there were one hundred and seventy-six people, seventy-seven households and fifty-eight families residing in the township.

There were three hundred and twenty-nine housing units at an average density of 4.1/sq mi (1.6/km2).

The racial makeup of the township was 96.02% White, 0.57% African American, and 3.41% from two or more races.

22.1% of all households were made up of individuals, and 11.7% had someone living alone who was sixty-five years of age or older.