If you're looking forward to lots of outings with your partner, check out these details about year-round temperatures in Xinxing County: The hottest months are usually July and August with an average temp of 82°F, while the coldest months are January and December with an average of 62°F. The rainiest months in Xinxing County are June, May, August, and July, with each month seeing an average of 12 inches of rainfall.