Home About Indiana Indiana Weather Proud Home to All Four Seasons No matter what time of year it is, you’ll find something fun to do outdoors thanks to our Midwestern location. It’s often mild enough that golfers can play into late fall or early winter, but snow skiers can still hit the slopes in the winter. Hiking is fun whatever season, and when the summer sun shines brightly it’s a great time to hit a water park, baseball game or zoo. Average Temperatures As you might guess, January is typically the coldest month and July the hottest. Here are average temperatures for each month. Monthly Precipitation While kids do get to enjoy snow days in Indiana, the summer months bring the most precipitation. Check out the monthly averages.