Costa Mesa, California gets 12 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Costa Mesa averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 274 sunny days per year in Costa Mesa. The US average is 205 sunny days.
Costa Mesa gets some kind of precipitation, on average, 36 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 78 degrees
Winter Low: the January low is 48
Rain: averages 12 inches of rain a year
Snow: averages 0 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Costa Mesa is 9.3 (10=best), which means it is one of the most pleasant places in California.
9.3 / 10
June, October and September are the most pleasant months in Costa Mesa, while January and February are the least comfortable months.