University of Oklahoma Press, Norman. Temperatures are extremely high, largely precluding midday active recreation. Winters are mild and ideal for all types of outdoor recreation. Rainfall is low, generally occurring in December, January, and February. In the coastal California and San Francisco Bay Area portions of the route, winters are mostly frost-free and summers mild.
Outdoor recreation is a year-round possibility.
The major part of these areas rainfall comes in the winter and early spring. The portion of the route between Gaviota on the Santa Barbara Channel and Monterey has hot dry summers and cool winters. Year-round outdoor recreation is possible, but precautions must be taken to protect from sun exposure in the summer. Some trail segments in urban areas such as Tucson, Arizona, or Los Angeles, California, may be accessible to all. However, many of the more rural trail segments are located along rivers in sandy soils and may not be appropriate for wheelchair use.