Round Rock (zip 78665), Texas gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Round Rock (zip 78665) averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 229 sunny days per year in Round Rock (zip 78665). The US average is 205 sunny days.
Round Rock (zip 78665) gets some kind of precipitation, on average, 78 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 95 degrees
Winter Low: the January low is 38
Rain: averages 36 inches of rain a year
Snow: averages 0 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for the 78665 zip code is 7.2 (10=best), which means it is more comfortable than most places in Texas.
7.2 / 10
October, April and November are the most pleasant months in the 78665 zip code, while July and August are the least comfortable months.