The best time to visit Cortland, Ohio, is during the summer months, from June to August, when the weather is warm and sunny, superb for outdoor activities.During this period, the average temperatures range from 20°C to 28°C (68°F to 82°F), making it comfortable for exploring the local parks and enjoying events. You'll find many community festivals and farmers' markets operating, offering a chance to experience the local culture and fresh produce.Autumn, from September to October, is also a lovely time to visit for those who appreciate cooler weather and the beauty of changing leaves. The temperatures are milder, typically between 10°C and 20°C (50°F to 68°F), and the landscape is particularly scenic, especially around Mosquito Lake State Park.