If you're looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Jinzhai County: The hottest months are usually July and August, with an average temperature of 25°C, while the coldest months are January and December, with an average of 6°C. The rainiest months in Jinzhai County are July, June, August and May, with each month seeing an average of 201 mm of rainfall.