Amador County lies in California's Sierra Nevada foothills, and has a Mediterranean climate with hot, dry summers and cool, wet winters. Summer temperatures average around 80-90 degrees Fahrenheit while winter temperatures can dip to as low as 20 degrees Fahrenheit. The area receives an average of 25 inches of rainfall annually, most of which occurs between November and March. During the summer months, thunderstorms are common due to atmospheric instability caused by the large temperature contrast between the hot desert air to the east and cold air from the coast to the west. It's also important to note that Amador County lies in a high fire risk area due to its lack of humidity and abundance of dry vegetation.
Amador County, California gets 35 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Amador County averages 5 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 259 sunny days per year in Amador County. The US average is 205 sunny days.
Amador County gets some kind of precipitation, on average, 68 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Summer High: the July high is around 93 degrees
Winter Low: the January low is 36
Rain: averages 35 inches of rain a year
Snow: averages 5 inches of snow a year