Generally speaking, April, May and June have the most rain, or even snow; July and August are the driest and warmest months, with temperatures typically rising into the 70s and 80s.
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Yellowstone National Park can get very crowded during peak season (June, July, and August). The best months to visit Yellowstone are April, September, and October. These “off season” months provide more chances to catch a glimpse of the local wildlife and enjoy thinner crowds.
The absolute best time to visit Yellowstone is in summer, from mid June to mid September. That's when the weather is best, all the roads and facilities are open, and you can explore Yellowstone National Park to the fullest. However, this is also the busiest time.
Flights to the nearest major airport — that of Jackson Hole, Wyoming — are typically cheapest between November and March, which is the park's low season. Prices for lodging begin to drop after Labor Day, once the summer crowds have diminished and children are back in school.
You could easily take two weeks to explore Yellowstone (and you might want to after you spend a day here). To truly experience the best aspects of the park, you'll want to plan at least three days. But if you only have one day to spend in the park, you want to get the most out of your time here.
The best times to visit Yellowstone National Park are from late April to May as well as September through early October. These shoulder months offer mild weather, fewer crowds and little to no road closures.
It can snow in July or reach 70 degrees in late fall. We recommend you pack for all seasons, even in the summer months. Nights can get below freezing and days can get chilly, especially during and after a rainstorm.
The mornings (dawn until 11 a.m.) and evenings (6 p.m. until dusk) are perfect window times for beating the tour groups and family wagons and securing a spot with an uninterrupted view. If you prefer the morning, all you need is a trusty alarm clock, maybe a strong cup of coffee and an early start to the day.
Jackson, WY is the ideal base camp for a trip to Yellowstone. Here are 5 reasons why you should stay in Jackson Hole while visiting Yellowstone National Park.
A Yellowstone vacation package costs from $1,000/person for four nights to $5,000 or more per person. Not including tax and tips. Check out my itineraries and guidebooks for planning your own trip.
Yellowstone is a large and complex national park, with many different roads that travel to the most popular boardwalks and trails. I recommend staying inside of the park if you want to have more opportunities for sightseeing without the crowds.