Springfield area tends to get more ice storms than snow storms anymore so be ready to lose power alot in the winter time. Four wheel drive or all wheel drive is a must. If you can afford a generator get one before the season hits otherwise they will sell out pretty quick.
Tornados are pretty common down there and so are smaller earthquakes. You are only a few hours from New Madrid which has an active fault line.
All in all though I think you will like it if you can handle humidity in summer and cold, wet winters. You'll be close to several lakes and rivers so if you enjoy fishing or being on the water you'll not lack places to go.
Oh and irises love it here in Missouri!!
