Crisp fall air to bring first frost of season to parts of northeastern US

By Renee Duff, AccuWeather.com Meteorologist

September 25,2016; 11:29PM,EDT

 

 

Fall air has finally arrived in the northeastern United States and may yield the first frost of the season in parts of the region to end this weekend.
An area of high pressure from Canada will settle over the Northeast, leading to clear and chilly conditions for Sunday night.
"For many locations, this weekend will deliver the lowest temperatures since last spring," according to AccuWeather Meteorologist Brett Rathbun.

Washington, D.C., recorded a low of 59 F on Sunday morning, marking the first time that temperatures in the nation's capital dropped below 60 F since June 9.
Meanwhile, temperatures dipped to freezing in Bradford, Pennsylvania.
Sunday night will be just as cold, if not slightly colder, across the majority of the Northeast. The exception will be the central Appalachians as clouds stream in.
Lows will dip into the 30s across most of New England (away from the coast), and eastern and central New York and parts of northeastern Pennsylvania on Sunday night. Portions of the Adirondack, Green and White mountains may dip into the 20s.
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The increasing length of the overnights as well as clear skies and calm winds will create an ideal environment for frost to develop in some of the coldest interior locations.
Frost may visit the countryside in upstate New York and western and northern New England early Monday morning, Rathbun stated.
Same of these same locations experienced their first frost of the season early Sunday morning.
The first frost typically occurs during late September in northern New England and upstate New York, and early October across the rest of the interior Northeast. Along the Interstate-95 corridor, the date of the first frost typically occurs during the middle of October.

Residents may want to bring potted plants indoors and/or place a protective covering over the most sensitive vegetation overnight.
Extra time may be needed when heading out the door in the morning to clean off frosty windshields.
While frost will not be a concern for most across the Northeast, jackets and sweatshirts may need to be brought out after the sun dips below the horizon.
The dry weather accompanying the cool push is expected to come to end from west to east late on Monday into Tuesday.
The same system that is threatening the central U.S. with flooding this weekend will bring the return of showers and heavier thunderstorms and a brief uptick in humidity across the Northeast early this week.