http://gochicago.about.com/od/chicago101thebasics/a/may.htm
http://en.wikipedia.org/wiki/Climate_of_Chicago
http://www.crh.noaa.gov/lot/?n=mayrec-ord
The weather in Chicago is sometimes warm but as the months change the weather changes.
Today, January 10, 2014, the weather in Chicago is 37 degrees Fahrenheit.
Today, January 10, 2014, the weather in Chicago is 37 degrees Fahrenheit.
cold and windy
cold, windy, etc.
The weather may vary depending where in Pennsylvania you are.
niba
it is hot
Variable.
Variable.
amaZING
When flying in and out of Chicago, many wonder what weather circumstances will ground their flights. Only extreme weather such as blizzard, or conditions where it is unsafe to fly, will cause such a delay.