Winter Conditions
From October to June, Crater Lake National Park is a snow-covered wilderness. November through April is assuredly snowy with poor
visibility and fair to poor driving conditions, but wonderful skiing and snowshoeing opportunities. With snowfall still lingering on the ground in early July, winter defines Crater Lake National Park more than any other season.
Snowfall averages 533 inches (1,350 cm) annually, and by early spring, it is typical to have ten to fifteen feet (4 meters) of snow on the ground. While snowfall is common in the Cascade Mountains, Crater Lake National Park is one of the snowiest areas in the Northwest where regular records are kept.
The National Park Service began recording weather information at Crater Lake National Park headquarters in 1926. The winter of 1932-1933 still holds the record for total snowfall in a single season, with 879 inches (2,230 cm). In 1950, Crater Lake set a state record for snowfall in a single calendar year, with 903 inches (2,294 cm).
The most snow ever recorded on the ground at Park Headquarters was 21 feet (6.4 meters), on April 3, 1983.
Typical winter temperatures range from a high of about 35°F (2°C) to an overnight low around 19°F
(-7°C).