The best time to go to Green Valley Lake depends on whether you prefer summer activities or winter sports, with July through September offering the warmest weather and December through March providing the best snow conditions.For those looking for a classic mountain summer experience, July and August are ideal. The weather is warm and sunny, great for enjoying the lake, hiking the surrounding trails, and participating in outdoor recreation. Families often find this time of year great for a relaxed getaway, with opportunities for swimming, fishing, and boating on the lake.If you're interested in winter sports, the period from December to March offers the best chance for snow. During these months, the area transforms into a winter wonderland, suitable for activities like sledding, cross-country skiing, and snowshoeing.