Yes

Based on the weather in Dayton International Airport (DAY), 3600 Terminal Dr, Dayton, OH 45377, USA as of October 17, 2017 5:35am local time

Why? Because it's cold. simple as that.
Current Conditions
Clear
Temp: 37.4°F3°C
Wind: 0.8 MPH1.3 KPH
Precipitation: None