What's the climate like in Jiaxing?

First of all, I am from Jiaxing. Personally, Jiaxing is very cold in winter. Although it doesn't snow often and the lowest temperature is around 0, my hands and feet will still grow frostbite. It's very hot in summer, often over 30, sometimes at 37 or 8, and I sweat as soon as I sit down. At that time, electric fans were useless. It's okay these days, but it rains sometimes in Mao Mao, and the temperature is over 20 degrees, so it's cooler during the Spring Festival.