cheltenham is located on the borderline of the humid subtropical climate ("cfa") and the hot-summer humid continental climate ("dfa") zones. as with most northeast townships, cheltenham has four distinct seasons. summers are warm and have occasional heat waves. autumn is cool and comfortable. winters are cold, most days hovering around the freezing mark with nights dipping to the teens. spring is pleasant with often not too much precipitation. the hardiness zone is 7a.