Because of its altitude, on average nearly 7,500 ft (2300 m) above sea level, Yellowstone has long, cold winters. Temperatures can drop below -40ºF (-40ºC) and several feet of snowfall is common throughout the park.
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Weather in AugustThe weather in Yellowstone in August is usually hot during the day and cooler in the evening. The average temperature for Mammoth Hot Springs is a high of 79, and a low of 47 degrees Fahrenheit (26/ 8 degrees Celsius).
Average Temperature in Yellowstone National ParkThe cold season lasts for 3.6 months, from November 17 to March 4, with an average daily high temperature below 34°F. The coldest month of the year in Yellowstone National Park is January, with an average low of 5°F and high of 25°F.
Why is West Yellowstone so cold? West Yellowstone has a repuation for being one of the coldest locations in the continental US year-round. Snowstorms are even fairly common in the summer because West Yellowstone is a high mountain town stationed at over 6,000 feet above sea level on a plateau where storms often break.
June Weather in Yellowstone National Park Wyoming, United States. Daily high temperatures increase by 12°F, from 60°F to 72°F, rarely falling below 47°F or exceeding 81°F. Daily low temperatures increase by 6°F, from 35°F to 41°F, rarely falling below 29°F or exceeding 48°F.
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.
Swimming in Yellowstone National ParkYellowstone National Park isn't exactly known for its swimming holes. Due to the thermal activity in the park, most rivers and lakes in Yellowstone are closed to swimmers. However, if you're up for an adventure, the park has opened up a few alluring areas to the public.
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.
Autumn (September)Yellowstone's fall weather can range from near-freezing temperatures with rain and snow to above 70 degrees Fahrenheit, so be prepared with a range of clothing layers. Hiking shoes or boots: Comfortable, sturdy, and waterproof. Consider boots with lightweight insulation for early spring.
My best advice for Yellowstone in July or August is to pack summer clothing for outdoors. Make sure to also carry a sweater and a thin rain jacket just in case it gets colder or you get caught in the rain.
The lowest temperature recorded in Yellowstone was -66F (-54C) near West Yellowstone on February 9, 1933. Annual snowfall averages near 150 inches (380cm) in most of the park. At higher elevations, 200-400 inches (5-10m) of snowfall have been recorded.
Elk. Elk or wapiti (Cervus canadensis) are the most abundant large mammal found in Yellowstone; paleontological evidence confirms their continuous presence for at least 1,000 years. Yellowstone National Park was established in 1872, when market hunting of all large grazing animals was rampant.
If you do any hiking or camping in Yellowstone, you SHOULD bring bear spray. Generally, you don't need bear spray when visiting the popular and crowded geyser areas and villages, such as Old Faithful and Canyon Village.