Extreme cold snap in NYC could bring real-feel temps below 0 — and big chill won’t break till Feb.

A frigid cold snap is headed for the Big Apple — with real-feel temps potentially dropping to below 0 and the chill persisting through the end of the month.

The cold will move in Monday night with lows in the teens, with an icy 25-degree day by Tuesday, then hover in the 20s and 30s, AccuWeather meteorologist Alex DaSilva told The Post.

But the big freeze will really arrive by Friday — deepening through the weekend and encrusting the city all next week.

Snow and rain pelts the city Sunday. LP Media

“It may take until the start of February to break the pattern,” DaSilva said. “The second half of the month is expected to be cold. While there can be slight warm-ups, the rest of the month overall is expected to be chilly.

“High temperatures next week can be in the lower 20s or high teens, and the lows are expected to be in the lower teens or single digits,” he said. “For reference, the average high in New York City this time of the year is 39, and the average low is 27.”

Lows will range between 13 and 11 degrees Fahrenheit from Friday to Tuesday, according to AccuWeather, with similar temperatures expected to continue through the week.

Highs from Saturday to Tuesday don’t break 22 degrees, forecasts showed.

The extreme-cold snap comes after a snowy weekend in the Big Apple, which saw flurrying accumulations of about an inch Saturday in New York City and persisting into Sunday morning.

New Yorkers shouldn’t be surprised to see more snowfall before the month is out, either.

“There will be multiple opportunities for snow over the next few weeks. Most will be light and will come from passing cold fronts or fast moving clipper storms,” DaSilva said.

“As these fronts and storms move through, the winds can pickup and lead to very dangerous AccuWeather RealFeel temperatures below 0 at times.”

This latest cold spell comes from cold air being forced down from the Alaska area, which is currently experiencing a warm period.

“I always like to describe it as, ‘What goes up must come down,’ ” DaSilva said. “Since Alaska will be warm, the cold polar air is displaced and is sent down from Canada into the eastern US.”