Rio Vista, CA is situated in the Central Valley of California and enjoys a Mediterranean climate with hot, dry summers and mild, wet winters. The area experiences little rainfall throughout the year, with most coming in the winter months. During the summertime, temperatures can exceed 100 degrees Fahrenheit during the day but cool down significantly at night. Winters are usually mild and sometimes foggy. Spring is generally dry and warm with occasional rain showers while autumn brings beautiful foliage and cooler nights as temperatures gradually decrease towards winter.
Rio Vista, California gets 20 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Rio Vista averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 268 sunny days per year in Rio Vista. The US average is 205 sunny days.
Rio Vista gets some kind of precipitation, on average, 58 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 39
Rain: averages 20 inches of rain a year
Snow: averages 0 inches of snow a year