The earliest occurrence of FROST in the state happened on this day, August 14, 1964, in Howard County in Saratoga Township --- around 15 miles from the Minnesota border. It wasn't a HARD FROST, but regardless, there was FROST IN AUGUST in Iowa.

This is when we NORMALLY should have the first frost of the season:

https://twitter.com/search?q=first%20frost%20dates%20iowa&src=typed_query

More From K92.3