What's the weather like in Changchun, Jilin?

Wear summer clothes, but prepare thin autumn trousers. It's very hot at noon, and it will get cold sooner or later. The weather changes occasionally. Recently, the average temperature is 23, which is relatively cold. It will be very hot in July, but it is almost 33 at the hottest time. In that case, the high temperature won't last long, just three or four days. Have a nice business trip. O(∩_∩)O