Monday marks the end of the region's fire season, allowing Cal Fire stations to release seasonal firefighters and also ending the requirement that property owners must obtain state burn permits for control burns.

During the first 10 months of this year, the California Department of Forestry and Fire Protection's regional unit responded to 536 wildland fires in Sonoma, Lake, Napa, Yolo, Colusa and Solano counties. Four of those fires exceeded 1,000 acres.

Cal Fire cited recent rains and cooler temperatures as the reason to designate an end to the fire season. A spokeswoman said the department will close some fire facilities and release some fixed wing aircraft from service, but it remains prepared to increase staffing if warranted by new fire activity.

Before starting a controlled burn, property owners still should check with local fire agencies and air pollution control districts to ensure they meet all fire and pollution permit requirements, the spokeswoman said.

— Robert Digitale