📚 Illinois, Indiana & Ohio Month-by-Month Gardening: What to Do Each Month to Have a Beautiful Garden All Year
📚 Grow Great Vegetables Illinois
📚 Midwest Gardener's Handbook, 2nd Edition: All You Need to Know to Plan, Plant & Maintain a Midwest Garden
Temperature climatic data from weather station: CHICAGO NORTHERLY IS (USC00111550)
Precipitation climatic data from weather station: CHICAGO UNIV (USW00014892)
Agricultural climatic data from weather station: CHICAGO UNIV (USW00014892)