Snow Trivia for Chicago and Rockford

 

Here are some snowfall statistics for Chicago. Snowfall data goes back to 1884.
 
First snow of the season
Average; October 30
Earliest; September 25 (1928 and 1942)
Latest; December 5, 1999
 
First measurable snow (.1 inches or more) of the season
Average; November 16
Earliest; October 12, 2006
Latest; December 16, 1965
 
First one inch or more of the season
Average; December 2
Earliest; October 19, 1989
Latest; January 17, 1899
 
Greatest/least snowfall
In a storm; 23.0 inches January 26-27, 1967
In a calendar day; 18.6 inches January 2, 1999
In a month; 42.5 inches January 1918
In a season; 89.7 inches 1978-1979
Least in a season; 9.8 inches 1920-1921
Greatest snow depth on the ground; 29 inches January 14, 1979
 
Here are some snowfall statistics for Rockford. Snowfall data goes back to 1905.
 
 First snow of the season
Average; November 2
Earliest; October 3, 1951
Latest; December 19, 1999
 
First measurable snow (.1 inches or more) of the season
Average; November 20
Earliest; October 12, 1909
Latest; January 7, 1940
 
First one inch or more of the season
Average; December 1
Earliest; October 23, 1917 and 1929
Latest; February 7, 1921
 
Greatest/least snowfall
In a storm; 16.3 inches on January 6-7, 1918
In a calendar day; 13.5 inches March 31, 1926
In a month; 36.1 inches January 1918
In a season; 74.5 inches 1978-1979
Least in a season; 2.8 inches 1906-1907
Greatest snow depth on the ground; 27 inches January, 1979
 
 


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