Sep 25, 2016 4:56 PM
NH1 First Alert Weather: Frost advisories issued for much of NH; Monday morning temps in the 30s
The first frost will occur Monday morning in parts of southern and central New Hampshire, as temperatures dip into the 30s.
Sunday morning was cold enough, with Concord bottoming out at 33 degrees. Other southern New Hampshire towns, including Hudson, Exeter, and Epping, also experienced temperatures in the mid to upper 30s early in the day.
The National Weather Service has issued a frost advisory from midnight to 8 a.m. Monday for all of central New Hampshire and interior areas of southern New Hampshire.
Overnight, temperatures will fall into the 30s. Frost will threaten crops and plants.
The growing season is likely to end in northern New Hampshire, where a freeze warning has been issued. Some parts of Coos, Grafton and Carroll counties could fall into the 20s by early Monday morning.
Most of southern New Hampshire will have lows in the 30s, with the only exception likely being the city of Manchester, which can more easily retain some of the daytime heating.
Even parts of Rockingham county, not included in the official frost advisory, may see a frost with temperatures dipping into the middle 30s in a few places, especially away from the seacoast.
The graphic below suggests where a frost is possible (in white) or likely (in blue).