A hardiness zone is a geographic area with a similar average minimum temperature. The map is based on the average annual ...

A hardiness zone is a geographic area with a similar average minimum temperature. The map is based on the average annual extreme minimum temperature, so people in those areas know which plants can ...

The map, revised by Cal Fire under the guidance of the State Fire Marshall, shows wildfire risk for use in land use planning, building code enforcement and wildlife mitigation strategy development. It ...