Mount Everest Peak: Height, Deaths, 2pm Rule, and Key Facts

There’s a reason Mount Everest’s peak draws both awe and caution from climbers and armchair explorers alike: it’s the highest point on Earth, but its extreme conditions and deadly history make it as terrifying as it is magnificent. We’ll explore the most pressing questions about Everest’s summit, from its officially measured height of 8,848.86 meters to the risks that have claimed hundreds of lives.

Height above sea level: 8,848.86 m (29,031.7 ft) ·
First successful ascent: May 29, 1953 by Edmund Hillary and Tenzing Norgay ·
Total deaths (as of 2025): Over 300 climbers ·
Climbing seasons: Spring (April–May) and Autumn (September–October) ·
Average summit temperature: -36°C (-33°F) in winter

A half dozen key figures paint a stark picture of the world’s highest peak, from its official elevation to the human toll it has taken.

How many climbers have died in Everest?

Mount Everest has claimed more than 280 lives by 2019, according to BBC News. A more recent tally from a 2026 summary by mountaineering chronicler Alan Arnette puts the total at 339 deaths, of which 207 were members and 132 were hired workers, primarily Sherpas. The Nepal (south) side alone recorded 229 deaths from 9,887 summits.

• Main causes of death: avalanches, falls, and altitude sickness in the death zone (above 8,000 m). Most fatalities occur in this oxygen-starved region.
• How does the death toll compare to other peaks? Everest’s death rate fell below 1% after 2010, according to Climbing Kilimanjaro guide, yet the absolute number remains the highest among 8,000-meter mountains.

The pattern: the mountain takes lives in predictable ways, but the overall fatality rate has declined as gear and protocols improve. Still, over 300 deaths is a stark reminder that Everest does not forgive carelessness.

What is the 2pm rule in Everest?

The 2pm rule is a hard turnaround time that expedition leaders enforce to prevent disaster. Climbers must turn back by 2:00 p.m. regardless of how close they are to the summit. The rule was born from the 1996 disaster that killed 12 climbers, as documented by BBC News.

• Why is the 2pm rule critical? Afternoon weather on Everest deteriorates rapidly. Staying above 8,000 m past that hour dramatically increases the chance of being caught in storms, darkness, or extreme cold.
• What happens if climbers miss the turnaround? Those who ignore the rule often end up in the death zone after dark, requiring risky rescues or becoming fatalities.

The trade-off: turning back is emotionally crushing after weeks of effort, but it is the single most effective decision for staying alive.

How cold is it at the peak of Mount Everest?

Winter summit temperatures at Everest’s peak average around -36°C (-32.8°F), according to Tibet Vista travel guide. A record low of -41°C (-42°F) was measured in December 2004. With wind chill, the perceived temperature can reportedly drop to about -60°C (-76°F), as noted by Tidy Himalaya blog. In midsummer, temperatures rarely climb above -20°C (-4°F).

• Wind chill factor: The jet stream can create wind speeds over 200 mph, making the cold feel exponentially worse. High Adventure Expeditions guide notes that temperatures near 29,000 feet often range from -35 to -55 degrees, with sharp variations depending on wind exposure.
• Seasonal variation: The coldest period runs from mid-December through January, with average summit temperatures around -37°C (-35°F), according to Himalayan Wonders climate guide. May, the most popular climbing month, averages about -26°C (-15°F).

The catch: even the best gear cannot fully protect against Everest’s winter extremes. Weather windows are short, and the cold is a silent, persistent danger.

Has anyone ever reached the peak of Mount Everest?

Yes — the first successful ascent was on May 29, 1953, by Edmund Hillary and Tenzing Norgay, as confirmed by BBC News. Since then, over 6,000 people have summited, with thousands attempting each year.

• Who was the first person to climb Everest? The honor belongs to Hillary and Tenzing together; no single “first” can be claimed, as they climbed as a team.
• How many people have summited Everest? Alan Arnette’s 2026 summary counts 9,887 summits from the Nepal side alone, plus thousands more from the Tibetan side. The total number of distinct individuals is estimated at over 6,000.

What this means: Everest is no longer an impossible dream for experienced mountaineers, but the sheer volume of climbers creates new risks — traffic jams at 8,800 m and increased exposure to the death zone.

Why do planes not fly over Everest?

Commercial aircraft avoid the Everest region primarily due to the jet stream, which can exceed 200 mph, and the lack of emergency diversion airports. The risks include severe turbulence, oxygen failure, and limited glide options over the Himalayas.

• What are the risks of flying over the Himalayas? The jet stream creates violent wind shear. If an engine fails or cabin pressure drops, pilots have no flat terrain for an emergency landing.
• Do any planes ever fly over Everest? Some smaller aircraft venture close for sightseeing, but they stay at lower altitudes and avoid the peak itself. No commercial airlines have scheduled routes directly over the summit.

The implication: the mountain’s geography turns a routine flight into a high-stakes operation. Airlines have decided it’s not worth the risk — and the data backs them up.

What is the oldest body still on Mount Everest?

The oldest known body on Everest is that of George Mallory, who died in 1924 during his attempt to become the first to summit. His remains were discovered in 1999, as reported by Climbing Kilimanjaro guide. Many other bodies remain scattered across the mountain because retrieval is extremely dangerous and costly.

• Where is the body of George Mallory? Mallory’s body was found at about 8,160 m on the north face, well preserved by the cold and dry air.
• Why are bodies left on Everest? Bringing down a body from the death zone requires a team of skilled climbers, oxygen, and thousands of dollars — and even then it endangers the rescuers. As a result, an estimated 200 bodies still lie on the mountain, according to Big Think article.

The pattern: the bodies are grim landmarks but also serve as a stark reminder that Everest does not release its dead easily. For families, closure often remains out of reach.

Voices from the mountain

“It is not the mountain we conquer but ourselves.”

— Sir Edmund Hillary, reflecting on the first ascent (as recalled by BBC)

“On Everest, the deadliest mistake is to think you are in control.”

— Jon Krakauer, author of Into Thin Air, describing the 1996 disaster (as cited by Big Think)

For those lured by Everest’s peak, the stakes are brutally simple: respect its rules, or join its grim statistics. The mountain will not negotiate.

Many aspiring climbers study Mount Everest peak facts to grasp the full scope of Everest’s dangers and regulations.

Frequently asked questions