The climate in Antioch, CA is generally warm and temperate. Summers are usually hot and dry with temperatures reaching up to the upper 90s, while winters can be cool but rarely dip below freezing. Rainfall averages around 21 inches per year, with most of the rain occurring between December and February. During the summer months, humidity is often high due to its close proximity to the San Joaquin River Delta. The area also experiences occasional fog, especially during spring and fall.
Antioch, California gets 15 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Antioch averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 263 sunny days per year in Antioch. The US average is 205 sunny days.
Antioch gets some kind of precipitation, on average, 57 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 90 degrees
Winter Low: the January low is 40
Rain: averages 15 inches of rain a year
Snow: averages 0 inches of snow a year