Average Dates of First Measurable Snowfalls Across Southeast Michigan

Colder air masses will move into Southeast Michigan as we head into the winter season.  The first snowflakes have already fallen, but accumulating snowfall won't be far behind.  Below is a table that list some of the first snowfall averages, first dates of occurrences, and the last date of first occurrence for the three climate sites in Southeast Michigan.

Detroit Trace Snowfall Measureable Snowfall (0.1 inch) 1 inch or greater 3 inches or greater
Average Date November 1 November 17 November 30  December 26
Earliest Date October 1, 1974 October 12, 2006 October 19, 1989 November 2, 1966
Latest Date of First Occurrence December 16, 1998 December 29, 1998 February 17, 1919 -
 

Flint Measureable Snowfall (0.1 inch) 1 inch or greater 3 inches or greater
Average Date November 16 November 29  December 29
Earliest Date October 12, 2006 October 12, 2006 October 19, 1989
Latest Date of First Occurrence December 9, 1931 January 31, 1943 -

Saginaw Measureable Snowfall (0.1 inch) 1 inch or greater 3 inches or greater
Average Date November 15 November 26  December 27
Earliest Date October 12, 2006 October 24, 1933 October 24, 1933
Latest Date of First Occurrence December 20, 1948 January 26, 1948 -



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