what is the over all California Fall climate?

There is no overall California climate.

The state stretches from 32 to 42 North latitude. It has high mountains, the lowest area in the States, plus coastal, and intra-montane regions.

no i mean how hot or how cold ist it in the fall there?

Check this list of California cities and the maximum temperatures for September, October, and November.

http://ggweather.com/climate/temp_max.htm

To determine the overall California fall climate, you can consider a combination of historical weather patterns and climate data. Here's how you can approach finding this information:

1. Start by identifying reputable sources: Look for official meteorological or climate organizations that provide reliable data on California's weather.

2. Consult climate normals: Many weather organizations and agencies compile climate normals, which are historical averages of weather conditions. These include average temperatures, precipitation levels, and other relevant data for specific regions and seasons. These climate normals can give you a good sense of what to expect in terms of temperature and precipitation during the fall in California.

3. Analyze historical data: Weather records are often maintained by meteorological agencies and can be accessed to study past fall seasons. Analyzing historical data will provide you with insights into the temperatures, rainfall, and weather patterns witnessed in California during previous fall months.

4. Consider regional variations: Remember that California is a large state with diverse geographical features, so climate conditions can vary across different regions. Coastal areas may experience milder temperatures compared to inland areas or mountainous regions. Take this into account when evaluating the overall fall climate in California.

By combining these steps and examining reliable sources, you can gain a comprehensive understanding of the overall fall climate in California.