We get a wide range of weather in Milwaukee. When you are gardening for the first time, you first step should be looking at your the weather. I searched through a few sites but this website presents all the data in a way that is straight forward easy to navigate.
After looking at the site it took me seconds to create this weather cheat sheet for my location. This won't protect me from freak cold weather storms in the spring, but it give me a place to start. I can see that should start raining in April, but May is a safer (warmer) month to start planting my garden. It also shows why my plant didn't producing fruit during the winter (not enough daylight). This data also allows me to see when i should start planting warm loving pepper plants vs my cold loving winter squash.