Weather

July 18th, 2009
January 10th, 2010

[Chicago's] changes in weather are often sudden and pronounced, but usually are of such a character as to have a stimulating effect upon the average person of health; and it is not at all improbable that the great energy of its people, which has resulted in the rapid upbuilding of Chicago, is due largely to the peculiar nature of its climate.

(Cox, Henry J. and John Howard Armington. The Weather and Climate of Chicago. The University of Chicago Press, 1914.)