Tropical Moisture Brings Slight Risk of Excessive Rainfall to the Southwest; Strong to Locally Severe Storms on the Plains

Heavy rain and flash flooding are possible across portions of the Southwest through Friday, where Flood Watches are in effect. Strong to locally severe thunderstorms are possible today across portions of the Plains. A tropical wave is causing heavy rainfall in Puerto Rico and the Virgin Islands, which may cause urban and small stream flooding and landslides today. 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

LOT RSS Feed

Tropical Moisture Brings Slight Risk of Excessive Rainfall to the Southwest; Strong to Locally Severe Storms on the Plains

Normal First Freeze Information