Geyserville, CA has a warm-summer Mediterranean climate. Summers are hot and dry, with temperatures often exceeding 90°F, while winters are mild and wetter with temperatures usually staying above freezing. The area receives around 20 inches of rain per year, most of which falls in the winter months. Winters also tend to be foggy, although the sun can still shine through on many days.
Geyserville, California gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Geyserville averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 260 sunny days per year in Geyserville. The US average is 205 sunny days.
Geyserville gets some kind of precipitation, on average, 76 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.
Weather Highlights
Summer High: the July high is around 91 degrees
Winter Low: the January low is 38
Rain: averages 45 inches of rain a year
Snow: averages 0 inches of snow a year