|Average Day Temperature in Fahrenheit||33||36||46||57||69||77||81||79||72||61||49||37|
|Average night temperature in Fahrenheit||19||21||29||38||48||58||62||61||54||44||35||25|
|Average rainfall in inches||2||2||3||3||4||4||4||4||4||3||3||3|
|Average snowfall in inches||13||12||11||2||Trace||0||0||0||0||1||5||12|
Average annual rainfall: 39 inches
Average annual snowfall: 61 inches
Spring's rain and warming temperatures bring new leaves on trees, blooming wildflowers, and visitors anxious get out on the trail after a long winter.
Summer temperatures range from 49 to 95 degrees F and can be humid. Dressing in layers is advisable for any biking or hiking activities.
Fall temperatures can range from low 70s during the day to freezing during the night. Come prepared for all types of weather, from sun to fog, from downpours to flurries. Fall foliage often peaks during the first few weeks in October; the peak time is generally mid-October. Weather conditions over the summer, such as drought, may alter the time that the leaves peak.
Winter weather conditions can rapidly change, due to the lake effect snow from Lake Erie. Temperatures vary from mid-30s to below zero. The park averages 61 inches of snow annually. For the latest in weather information, call the park at 800-257-9477.