Snowall Statistics for Chicago

 


First Snowfall

Trace or More
Average Date: October 30th
Earliest: September 25, 1942 (Trace)
  September 25, 1928 (Trace)
Latest: December 5, 1999 (0.1 inches)

Measurable (0.1 inches or more)
Average Date: November 16th
Earliest: October 12, 2006 (0.3 inches)
Latest: December 16, 1965 (0.3 inches)

One Inch or More

Average Date: December 2nd
Earliest: October 19th, 1989 (3.8 inches)
Latest: January 25, 2013 (1.1 inches)


 Most Consecutive Days with Measurable Snowfall

1.  9 Days  January 6-14, 2009
2.  8 Days December 13-20, 1973
3.  7 Days Five Stretches (last one being January 11-17, 1979


Seasonal Snowfall

Average Snowfall from Fall through Spring (1981-2010): 36.7 inches
Least amount of snowfall: 9.8 inches (1920-1921 season)
Greatest amount of snowfall: 89.7 inches (1978-1979 season)


Monthly Snowfall

  Greatest Least
January 42.5 inches (1918) 0.2 inches (1928)
February 27.8 inches (1896) Trace (1998, 1987)
March 23.1 inches (1926) Trace (2000, 97, 94, 21, 1910)
April 13.6 inches (1938) Zero (Numerous Years)
May 2.2 inches (1940) Zero (Numerous Years)
June Trace (1910) Zero (Numerous Years)
September Trace (1942, 1928) Zero (Numerous Years)
October 6.3 inches (1989) Zero (Numerous Years)
November 14.8 inches (1940) Zero (1999, 2001)
December 33.3 inches (1951) Trace (December 1912, 1889)

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