Symptoms of an allergic reaction which may require medical intervention include: 1  Swelling or angioedema of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs. 2  Hoarseness. 3  Difficulty breathing or swallowing. 4  Rash or hives. 5  Abdominal pain.
Averages for Chicago in December. December in Chicago is winter and this means an extremely cold climate that can be subject to icy winds and snow. Make sure you layer up your clothes with a warm coat over the top, as winter in Chicago can be brutal. If you're not one for cold weather, Chicago is a city to be avoided in January! Read more.
Chicago is known as the Windy City. The name comes from its windy politicians, but it could just as easily apply to the winds that howl in off Lake Michigan. They are a welcome relief during hot summers and a brutal reality during frigid winters. In the spring, temperatures begin to moderate and the city comes alive again. But always carry a jacket and umbrella. As the saying goes: If you don't like the weather in Chicago, wait 10 minutes and it will change. You might consider waterproof boots as well if you're coming early in the season. April snow showers are possible and the winter snowmelt can result in deep puddles at city street corners.