National Weather Service United States Department of Commerce

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

 

Last Freeze Normals
  Normal Last Spring 32° or Lower Last Year (2021)
Chicago (O'Hare) April 21 April 22
Rockford April 27 April 22

 

Normals are based on 1991-2020 data.

 

Last Freeze Records
  Earliest Last Spring 32° or Lower Latest Last Spring 32° or Lower
Chicago March 19, 1925 May 25, 1992
Rockford April 7, 2017 May 27, 1992

 

History of the Chicago and Rockford Weather Observation Sites

 

Illinois Normal Frost and Freeze Info     |      Indiana Normal Frost and Freeze Info

 


This Spring's Temperatures

 

Text Listing of Local Area Observed Low Temperatures

Maps of Midwest Recently Observed Low Temperatures

 


Other Information