After a much-warmer-than-normal early March, we've had typical Chicago weather for the first week of April. The Climate Prediction Center still says April might be warmer and drier than normal, but the 6-10 day outlook is just cold.
Today it doesn't know what to do. Walking from the train I got sun, snow, pellets, and mist. And it's barely 3°C.
So, it really is spring in Chicago, but I'd very much like the week we get (usually in May) when it's warm and sunny. Like we had at the beginning of March.