As a polar vortex moved in, Chicago experienced record lows on Jan. 6, 2014. | Jessica Koscielniak / Sun-Times, file

Snow up to your shins. It’s what Chicagoans should prepare for.

Up to 3 inches of snow is expected to fall by Sunday afternoon and another 6 inches could fall Monday night.

And this week will be cold. Bitterly cold.

“We’re in for a pretty good dose of winter weather here,” National Weather Service meteorologist Mike Bardou said.

It will feel like a throwback to last year’s polar vortex as temperatures across the Chicago area steadily creep to below zero by midweek, Bardou said.

Winds up to 35 mph will accompany the mercury drop, creating wind chills of minus 30 or lower, Bardou said.

Wednesday will be the coldest day of the week with an expected high of zero.

A slight warmup will begin Thursday that will see temperatures climb into the teens and possibly the 20s by Saturday, Bardou said.

Sunday’s snow left flecks of white on the Bean at Millennium Park.

Black bears, wolves, a snow leopard and an Amur Tiger — all cold weather natives — roamed there snowy enclaves at the the Lincoln Park Zoo.

Cross-country skiers bided their time, needing another inch or two of snow before hitting the lakefront Sunday afternoon. But hundreds of the city’s hardiest of runners, undeterred by the slushy ground, hit the lakefront path.

Before Sunday, only 2.9 inches of snow had fallen this winter over one day in October and five days in November. - Sun Times.