National Weather Service United States Department of Commerce

Atmospheric River for the Northwest and Northern Rockies; Brisk and Snow Showers for Great Lakes and New England

Active pattern across the country with an atmospheric river event across the Northwest into the northern Rockies and a cold front moving through the east. For the west, accumulating snow and strong winds for the higher elevations are expected through Tuesday. Meanwhile, a cold front moves across the east with gusty winds and snow showers across the Great Lakes and New England. Read More >

 


Normals and Records

 

First Freeze

First Freeze Normals
  Normal First Autumn 32° or Lower First Freeze Date Last Year (2021)
Chicago (O'Hare) October 19 November 2
Rockford October 13 October 23

 

Normals are based on 1991-2020 data.

 

First Freeze Records
  Earliest First Autumn 32° or Lower Latest First Autumn 32° or Lower
Chicago September 22, 1995  (32°) November 24, 1931  (30°)
Rockford September 13, 1975  (32°) November 11, 2016  (32°)

 

History of the Chicago and Rockford Weather Observation Sites.

 

Illinois Normal and Record First Freezes   |    Indiana Normal and Record First Freezes

 


This Autumn's Temperatures

 

Text Listing of Local Area Observed Low Temperatures

Maps of Midwest Recently Observed Low Temperatures

 

First Freeze Dates of this Autumn


Other Information