What is the best time of year to climb the Grand Teton?
Generally, July and August are the warmest and driest months in the Tetons. We usually set up our high camp in early June and take it down around the second week of September. It is not uncommon to have stable weather and successful ascents in June and early September but the temperatures are, on average, cooler in those months. Routes are often snow covered in June, while trips in August and September will be primarily on rock and talus. Those who wish to avoid the potential of crowding on the mountain should consider climbing in June, earlier in July or early September.
