Packing by Season
Pack for Yellowstone’s rapid weather shifts with gear guidance tailored to your visit month.
Between March and May, temperatures swing dramatically—even at noon, it can be 50°F, dropping to near freezing after dark. Base layers of merino wool, mid-layers like fleeces, and a waterproof outer shell are essential. Traction for non-four-wheel-drive vehicles is challenging on partially snow-covered roads: snow tires or chains recommended for entries like the North Entrance before May. Emergency blankets and hand warmers belong in every vehicle, especially for remote sections like the Beartooth Corridor.
June to August brings sunburn, unexpected thunderstorms, and cool lake winds. Sun hats, sunscreen, UV-blocking sunglasses, and quick-dry clothing are practical. Shoes should be sturdy for wet trail conditions—mud is common in the park’s lowland areas before mid-July. Even in summer, higher elevations can see temperatures dip below 40°F after sunset. Don’t forget a dry bag for electronics if kayaking or hiking near rivers.
September to October requires more insulation and storm-readiness as early snows return. Down or synthetic insulated jackets, gloves, and thermal hats become daily gear. Four-wheel-drive vehicles may need winter tires by late October, and snow tires or chains often required at higher passes. Emergency kits should include extra food, water, a shovel, and a charged satellite communicator or emergency beacon—especially if camping away from developed areas where cell service is absent.
