average chicago temperature in may
May in Chicago means the good weather is finally coming into effect and the promise of summer is imminent. The beaches also open in May, so get ready for some warmer weather and a final goodbye to the winter. The average daily temperature for Chicago in May is a warm 21 C, but this can drop to 9Â°C on average.Long suny days are beginning to be seen again in Chicago in May, with the city exp...he beaches also open in May, so get ready for some warmer weather and a final goodbye to the winter. The average daily temperature for Chicago in May is a warm 21 C, but this can drop to 9Â°C on average. Long suny days are beginning to be seen again in Chicago in May, with the city exp... Read more.