Just how cold did it get on Wednesday? Here's a look at which communities measured the most frigid temperatures.

The National Weather Service issued a cold weather advisory for parts of western Massachusetts, which is in effect from midnight to 10 a.m. Wednesday. The following impacted areas could get wind chills as low as negative 15 degrees, with the exception of Northern Berkshire County, which could see wind chills as low as negative 25 degrees:

On Tuesday at 3:05 p.m. the National Weather Service issued an updated cold weather advisory valid for Wednesday between midnight and 10 a.m. for Franklin, Hampshire and Hampden counties.

CHICAGO — National Weather Service officials issued a cold weather advisory in effect until 2 p.m. Tuesday for portions of central, east central and northeast Illinois as well as northwest Indiana. Officials said dangerously cold wind chills may reach as low as 28 below zero causing frostbite to those exposed to the frigid temperatures in as little as 30 minutes.