National Weather Service United States Department of Commerce

 

The first 70 degree day in northern Ohio and northwest Pennsylvania typically occurs later in March or early April.

There are exceptions though. We have had warm spells as early as January. On a few occasions it has taken until early May for the first 70 degree day.

The first 70 degree day in northern Ohio and northwest Pennsylvania will typically occur in late March or early April but has occurred as early as January or as late as early May.