Snowfall Statistics for the First Snowfall of the Season
With our first snowfall of the season occurring at both Rockford and Chicago O'Hare, winter is knocking on the door. Here are some snowfall statistics for the first snowfall of the season for both Chicago and Rockford Illinois.
For the First Snowfall of the Season
Chicago
Trace or More
| Average Date: | October 30th |
| Earliest: | September 25th, 1942 (Trace) September 25, 1948 (Trace) |
| Latest: | December 5th, 1999 (0.1 inches) |
Measurable (0.1 inches or more)
| Average Date: | November 16th |
| Earliest: | October 12th, 2006 (0.3 inches) |
| Latest: | December 16th, 1965 (0.3 inches) |
One Inch or More
| Average Date: | December 2nd |
| Earliest: | October 19th, 1989 (3.8 inches) |
| Latest: | January 17th, 1899 (1.0 inch) |
Rockford
Trace or More
| Average Date: | November 2nd |
| Earliest: | October 3rd, 1951 (Trace) |
| Latest: | December 19th, 1999 (0.1 inches) |
Measurable (0.1 inches or more)
| Average Date: | November 20th |
| Earliest: | October 12th, 1909 (0.2 inches) |
| Latest: | January 7th, 1940 (1.6 inches) |
One Inch or More
| Average Date: | December 1st |
| Earliest: | October 23th, 1917 (1.0 inches) October 23th, 1929 (5.0 inches) |
| Latest: | February 7th, 1921 (2.2 inches) |
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