Snowstorm 'birthmarks'

Dear Tom,
Our mother told us that both my sister and I were born in snowstorms. She
was born on March 6, 1931, and I was born on Dec. 9, 1932? Can you provide
the details?
June Rohn, Elmhurst
Dear June,
It's true. Major snowfall followed both of your births, but your sister's
snowstorm was a much bigger event. From March 7-9, 1931, the city was hit by
16.4 inches of snow, the bulk of it (10.9 inches) falling on March 7. Your
snowstorm totaled only 6.5 inches, accumulating from Dec. 9-11, 1932. During
the early 1930s the nation was entering the "Dust Bowl" years, a period of
hot summers, extended summer drought and subpar winter snowfall. The
16.4-inch snowfall following your sister's birth accounted for 60 percent of
the entire 1930-31 winter total of 27.2 inches, and the December 1932 storm
provided nearly one quarter of the 28.1 inches that fell during Chicago's
winter of 1932-33.