The park is in one of the colder areas of California, and temperatures at night can drop below freezing at any time. With snow blanketing the area with an average of 500 inches a year, winter in Lassen can begin in late October, and the main park road can be closed until mid-June. Even in summer, you should be prepared for the possibility of rain and snow. In some years, you might see snowbanks lining the main park road into July. Winter, however, shows a different and beautiful side of Lassen that people are starting to appreciate. Since most of the park is over a mile high and the highest point is 10,457 feet, snow accumulates in incredible quantities. Altitude is also a consideration if you intend to stay in the area -- the high elevation can affect some medical conditions.
Avoiding the Crowds
Crowds? Forget it. Lassen is one of the least visited national parks in the Lower 48. Unless you're here on July 4 or Labor Day weekend, you won't encounter anything that could rightly be called a crowd. Even then, you can escape simply by skipping the popular sites, such as Bumpass Hell, Lassen Peak, and the Sulphur Works, and heading a few miles down any of the backcountry trails.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.