When will it start getting cold in indiana?

Question

When will it start getting cold in indiana?

Answer 1

Soon, you will need a jacket by the end of September, and a coat by the end of October.  It may be warm a few days per moth but it will be very chilly at night.  By November it will more than likely be cold all day!

Answer 2

It's usually long-sleeve weather by the end of September. But, it's Indiana -- the weather is never the same as the year before! I've worn short sleeves in January before! 8)