Fall in Yosemite | October & November
Because most of the trees in Yosemite are evergreen, fall foliage isn't one of the main draws to the park, although the maple trees, black oaks and other deciduous trees found dotting the mountains do show off their vibrant colors around mid-October. The best reason to go to Yosemite in the fall is to take in all the breathtaking views and catch glimpses of wildlife in relative solitude—it's the time of year when the park sees the fewest visitors.
Fall is the time to hike to places like Half Dome, Glacier Point and Sentinel Rock, all of which offer stunning views. Rock climbing and biking are also great to take advantage of in the fall. It should be noted that water levels are low in the fall, so this isn't a good season for checking out the park's waterfalls, which are at a trickle this time of year, if not completely dry.
Winter in Yosemite | December-March
Winter in Yosemite means lots of peaceful snowfall, and great snow-related activities at Badger Pass Ski Area. In February, take part in the annual Nordic Holiday Race—a two-day event with an 18k cross country skiing race, downhill telemark and 38k free-style events.