Consistent spring-like weather generally occurs in late April, but some snow is possible. May usually brings the most precipitation, about 3 inches. Like May, June can be a rainy month. Severe thunderstorms are common in June and July and occasional in August. Days are warm and nights comfortably cool.
Snow is common in late fall.
Monthly Weather Summary January is the coldest month. The average high and low are 37.4 F and 10.7 F. Temperatures below zero are common. Temperatures are often pleasant. The average high and low are 70.7 F and 41.7 F. September weather is often very pleasant with an average high of 78.4 F and an average low of 44.6 F. September is a little drier than the summer months. 14.5 F. June is a great month to observe dramatic thunderstorms.