Webmar 21, 2022 · on average, the last freeze of the season across most of the united states occurs after the first day of spring. Climate normals provide the average. Webenter your zip or postal code in the field above to see frost dates for your location (based on the nearest weather station), as well as the length of your growing season based on. Weban interactive map of average last frost dates in ohio and a list of locations in ohio with average last frost dates Webour frost date calculator will tell you precisely when your garden in cleveland, ohio is at risk for frost.