Why does Iowa have a state fair in the middle of August?

[GulfCoast66]

28. Trying to remember my studies in Agriculture from 30 years ago.

August was actually a slow month on the farm in the Midwest and upper south.

Crops were not hybrids and there was no such thing as grain dryers. They had to dry in the field. Corn especially. The crops maturity and weather meant harvest did not really get going until late September early October. And once harvest hit no one had any time. Post harvest was also slow but the weather prevented many people from traveling. Remember, they got to the fair under horse power and herded their show animals.

The calves and lambs were old enough to fend for themselves. Pigs always fend for themselves!

Pretty much the same reason our election is in early November. Crops were in and the weather had not turned too bad.

The farming pattern shaped this and all nations for centuries.