NEW YORK (MarketWatch) —Boston residents are no strangers to snow, but this month is already one for the record books, and we’re only about halfway through it.

On Sunday, the National Weather Service announced via Twitter that Boston had reached “its snowiest month on record with 45.5 total inches.” The old record was 43.3 inches in January 2005; the Weather Service has been keeping records since 1872.

“Boston has seen unprecedented levels of snow over the past few weeks, totaling nearly 80 inches, and more is expected,” Boston Mayor Martin Walsh said Saturday.

It’s currently snowing in much of the area, and the Weather Service has issued blizzard and windchill warnings through Monday morning.

Residents throughout the Northeast should bundle up.

“The biggest weather concern over the next 24 hours will be a rapidly developing nor’easter near New England,” the Weather Service announced on its website.

“ “High temperatures are expected to be 20 to 35 degrees below normal by February standards, with afternoon readings in the single digits and teens widespread, and 20s extending well into Virginia and North Carolina.” ” — National Weather Service

The storm was expected to produce blizzard conditions in eastern New England, including six to 12 inches of snow or more.

Icy temperatures will plague a bigger area of the Northeast.

“This same storm is bringing in a truly arctic air mass behind it, with some of the coldest weather of the season from the mid-Atlantic to New England on Sunday,” the Weather Service reports. “High temperatures are expected to be 20 to 35 degrees below normal by February standards, with afternoon readings in the single digits and teens widespread, and 20s extending well into Virginia and North Carolina.“



Indeed, residents in Washington, D.C. and New York City were facing 17-degree daytime temperatures Sunday, with a 12-degree reading in Philadelphia.



“Strong winds will combine with these frigid temperatures to produce brutal subzero wind chills, and numerous wind chill warnings and wind chill advisories are in effect,” the Weather Service said. “Wind gusts could exceed 60 mph over New England before quieter weather settles in for the beginning of the week.”