It took four days for Valery Rozov to climb to the jumping location on the north face of Mount Everest.
The temperature was -0.4 degrees Fahrenheit when Rozov jumped from a height of nearly 24,000 feet above sea level, which is the highest BASE jump ever completed. His parachute deployed, and he landed safely.
"It was one of the (most) difficult jumps for me because of the high altitude and my personal physical feeling (which was) not the perfect of course," said Valery Rozov. "I was a little bit nervous that the vertical part at the beginning was short for this altitude, but everything worked."
Rozov reached speeds of more than 120 mph, which he maintained for nearly a minute, according to his team sponsor, Red Bull.
The 48-year-old daredevil spent more than two years preparing for the jump, including the time it took to develop the special wing suit he wore during the jump.
The BASE jump on May 5 marked the 60th anniversary of the first ascent atop the world's highest peak by Edmund Hillary of New Zealand and Tenzing Norgay of Nepal.
ABC News contributed to this report.