On the official Illinois temp zones I am on the border of 5b and 6a. Straight East of St. Louis about 80 miles. We have had the warmest spring in memory with high 60s to 80s for about 2 weeks with more on the way. Daffs, tulips, forsythia, bradford pears, dogwoods, redbuds and my wife's bleeding heart just began blooming. Found my first bud ready to break open on a TB iris. I have a couple of early pink single peonies nearly a foot tall. Prime condition for a major heartbreak when the next freeze comes.