While there are different ways to map climates, USDA Plant Hardiness Zones are based only on the minimum average temperature. Using this scale, California spans from zone 5a, where average annual ...

The Clay Fire has sparked in Riverside County on Tuesday night as wildfires continue to plague Southern California.

Get top local stories in Southern California ... attend school in a zone that is under an evacuation order or evacuation warning by going to this website. Red zones on the map are under evacuation ...