Dear Tom,
I remember June 13th as a very stormy and rainy day in the Chicago area. It rained again this year. How often has the Chicago area had rain or storms on this date?
Bill Ooms, Alsip
Dear Bill,
A check of Chicago's precipitation records (1871-2009) on June 13 confirms your suspicions. At least some rain has fallen on that date 78 times out of a possible 139 days, and that computes to rain on 56 percent of the days. The normal mid-June precipitation frequency is 35 percent.
June 13 is also infamous in Chicago weather history. In 1976, a devastating F4 tornado killed two and injured 20 as it carved a "J"-shaped path of destruction through Lemont. The twister tossed cars through the air and destroyed an eight-block area that included half of the Lemont High School. The storm dropped 2-inch diameter hail and flooding rains that totaled 7.5 inches in the Oak lawn area.
I remember June 13th as a very stormy and rainy day in the Chicago area. It rained again this year. How often has the Chicago area had rain or storms on this date?
Bill Ooms, Alsip
Dear Bill,
A check of Chicago's precipitation records (1871-2009) on June 13 confirms your suspicions. At least some rain has fallen on that date 78 times out of a possible 139 days, and that computes to rain on 56 percent of the days. The normal mid-June precipitation frequency is 35 percent.
June 13 is also infamous in Chicago weather history. In 1976, a devastating F4 tornado killed two and injured 20 as it carved a "J"-shaped path of destruction through Lemont. The twister tossed cars through the air and destroyed an eight-block area that included half of the Lemont High School. The storm dropped 2-inch diameter hail and flooding rains that totaled 7.5 inches in the Oak lawn area.
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