Why is Yosemite Falls dry?

By late summer in all but the wettest of years, the granite lined watershed that feeds Yosemite Creek and Yosemite Falls has shed all of the snowpack from the winter and the falls dwindle to nothing but a trickle. It may in fact be completely dry for months until the rains come again.



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Yosemite's largest waterfalls flow from October or November through July, but tend to peak in April and May and into June, with some falls (including the park's signature Yosemite Falls) running dry by late summer.

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Be careful of sharp underwater objects or slippery rocks (aqua shoes are helpful), and of course, never swim above or directly below waterfalls. Mountain water is often very cold, so avoid prolonged exposure causing hypothermia and always use extreme caution when swimming in Yosemite with children.

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As large and as significant as Yosemite Falls is, it's a seasonal waterfall. By late summer in all but the wettest of years, the granite lined watershed that feeds Yosemite Creek and Yosemite Falls has shed all of the snowpack from the winter and the falls dwindle to nothing but a trickle.

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Every year in mid- to late February, hundreds of people flock to Yosemite National Park in California and make their way to Horsetail Fall in hopes of catching a glimpse of the spectacular Firefall.

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Some of the falls, such as Yosemite Falls, usually dry up altogether near late September. While other falls, such as Vernal and Nevada Falls, flow all year, they will be reduced to a trickle.

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October Weather in Yosemite At relatively low elevations like Wawona or Yosemite Valley, October's high temperatures average around 71°F (22°C). That's a perfect temperature for hiking or rock climbing. However, average nighttime temperatures drop to an average of 51°F (11°C).

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Yosemite Falls is one of the tallest waterfalls in the world, dropping 4,425 feet (739 m), it is the highest falls in North America.

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The Upper Yosemite Fall drops 1,430 feet (436 metres) and the Lower 320 feet (98 metres), with a series of cascades between; the total drop is 2,425 feet (740 metres), creating one of the world's highest cataracts, the highest in North America.

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Viruses aren't common in Yosemite's waters, but we recommend that you treat water to kill them.

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Within Yosemite National Park, you may not sleep in your car or RV except in a campsite that you're registered to stay in (except at Camp 4, where sleeping in cars is not allowed because it's a walk-in campground). Sleeping in your car along the side of the road is not allowed.

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Showers are available at the Curry Village pool showerhouse for a fee. Showers are not available elsewhere in the park. Dump stations are available at Upper Pines Campground (all year), near Wawona Campground (summer only), and near Tuolumne Meadows Campground (summer only).

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