Chicago Sees its Snowiest Halloween on Record

Chicago's Halloween snow broke a record Thursday, marking the snowiest Oct. 31 the city has seen. 

As of 4:30 p.m. Thursday, O'Hare International Airport has recorded 3.4 inches of snow, breaking the 2014 record of a tenth of an inch. The area is expected to see more snow for the afternoon and evening. 

Several counties across the Chicago area were under a Winter Weather Advisory for Halloween on Thursday. 

The National Weather Service issued the advisory the day before, taking effect for McHenry and DeKalb counties beginning Wednesday evening and continuing until 4 p.m. Thursday. 

For Grundy, Kane, Kendall, LaSalle and Lake counties in Illinois, the advisory begins at midnight and continues until 6 p.m. Thursday. In Cook and DuPage, the advisory begins at 3 a.m. and goes until 6 p.m. Thursday.

The advisories warn of accumulating snow with 4 or more inches expected in some locations. 

Several suburbs have already rescheduled trick-or-treating hours due to the wintry conditions. 

The weather on Halloween varies greatly year to year, particularly when it comes to temperatures. And recently, it’s featured quite a bit of rain.

According to the National Weather Service, normal temperatures for the last week of October sit in the mid- to upper-50s with lows in the mid- to upper-30s.

The average high for Oct. 31 is 56 degrees.

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