Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. 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

Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Normal First Freeze Information