Best time to visit Grand Teton National Park

September. Month by month below, with the weather, what's on and what it costs to fly there from your city.

September

Several sources favor early fall, especially September, for thinner crowds, golden aspens and wildlife; summer is the most popular but busiest.

“The Best Time to Visit Grand Teton National Park is in Spring and Fall to take advantage of lesser crowds and beautiful scenery.” morethanjustparks.com
“Autumn is our favorite season to visit Grand Teton National Park.” yellowstonepark.com
“The window many regulars protect. Crowds drop sharply after Labor Day” explore.usparkpass.com

4 of the 7 travel guides we read name these months.

Grand Teton National Park month by month

Average high and low in Grand Teton, and days with rain

January27°F / 1°F · 16 rainy daysChecking fares…Average high of 26°F and low near 1°F, with about 43 inches of snowfall.Winter means light crowds, a groomed ski route and no lodges or visitor centers open in the park.
February32°F / 6°F · 15 rainy daysChecking fares…Average high 31°F and low 3°F, with snow depth around 33 inches.Ranger-led snowshoe hikes run on Tuesdays and Thursdays from early January to mid-March.
March42°F / 15°F · 12 rainy daysChecking fares…Average high 39°F and low 12°F.Teton Park Road is groomed for skiing and snowshoeing through mid-March.
April50°F / 24°F · 10 rainy daysChecking fares…April and May are the rainiest months, and Teton Park Road and part of Moose-Wilson Road stay closed to cars through April.The Craig Thomas Discovery and Visitor Center opens April 10.About 66,000 visitors come in April, far below summer numbers.
May62°F / 33°F · 12 rainy daysChecking fares…Teton Park Road reopens to vehicles May 1.Lodging, campgrounds, restaurants and stores are closed until mid-May.
June71°F / 39°F · 11 rainy daysChecking fares…Most campgrounds, hotels and restaurants are open by early June.Expect mosquitoes in June and July.High country trails stay snow-covered into late June or early July.
July82°F / 44°F · 9 rainy daysChecking fares…Peak crowds in July and August, with wildflowers in the meadows through late July.Warm days, cool nights and common afternoon thundershowers.
August81°F / 42°F · 9 rainy daysChecking fares…Peak crowds, with the alpine routes finally clear of snow.Smoke or haze from wildfires is possible, especially in late summer.
Best timeSeptember71°F / 34°F · 8 rainy daysChecking fares…Crowds drop sharply after Labor Day, and aspens and cottonwoods turn gold from mid-to-late September.The Jenny Lake Boating Shuttle's last day is September 30.
October56°F / 25°F · 9 rainy daysChecking fares…Bull moose and elk are in the rut, visible from roadside meadows.Valley highs slide from the 70s into the 40s by mid-October, and some lodges close in early October.Teton Park Road and Moose-Wilson Road stay open through October 31.
November39°F / 15°F · 10 rainy daysChecking fares…Teton Park Road closes to vehicles November 1 and heavy snows usually arrive by then.The first heavy snows fall by November 1 and continue through April.
December28°F / 4°F · 16 rainy daysChecking fares…Average high 26°F and low 2°F, with about 40 inches of snowfall.The park road is groomed for skiing from mid-December.

Weather: Grand Teton averages (1991 to 2020 averages), as listed in its climate table on Wikipedia.

Every date to Jackson from your city

Live fares from your airport. Watch them and we alert you when they drop.

Busy, quiet and what to watch for

Busiest

July and AugustThe most popular window, with the high country clear of snow and the most crowds.
SummerPeak season for activities; crowds and competition for campsites and parking.

Quietest

WinterLight crowds, but hard cold, short days and no open lodges inside the park.
SpringTrails are muddy or snowy and most facilities are closed until mid-May, but roads and trails are quiet.

Watch for

SummerAfternoon thunderstorms are common; hike early and be back at the car by mid-day.
Late summerWildfire haze or smoke can affect views and activity.
SpringDeep snow, icy trails and weather that changes within hours.
June and JulyMosquitoes at varying levels.

Questions people ask

Can you get to Jenny Lake in the winter?: Teton Park Road closes to cars in winter, with its lower stretch groomed for skiing and snowshoeing.

Best time to visit Grand Teton National Park

September

Grand Teton National Park month by month

Every date to Jackson from your city

Busy, quiet and what to watch for

Busiest

Quietest

Watch for

Questions people ask

Best time to visit other places

Best time to visit Grand Teton National Park

September

Grand Teton National Park month by month

Every date to Jackson from your city

Busy, quiet and what to watch for

Busiest

Quietest

Watch for

Questions people ask

Best time to visit other places