Chicago's summers are stretching out into fall

Allergy sufferers in Chicago may still be sniffling well into fall. A new study examines the increase in freeze-free fall days here. That means a longer growing season for ragweed.

Related Keywords

United States ,Chicago ,Illinois ,Michigan ,America ,Barry Butler ,Climate Prediction Center ,Allergy Foundation ,University Of Michigan ,Climate Central ,Upper Midwest ,Allergy Foundation Of America ,Fox Model ,Weather ,Tims Weather Takeaways ,Weather Forecast ,