2025 Compare Climate & Weather:
Plano, TX vs Round Rock, TX

Highlights

On average, there are 232 sunny days per year in Round Rock. Plano averages 229 sunny days per year. The US average is 205 sunny days.

Round Rock, Texas gets 36 inches of rain, on average, per year. Plano, Texas gets 40.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Round Rock averages 0.2 inches of snow per year. Plano averages 1.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Round Rock, Texas
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 0.2 inches of snow a year

Plano, Texas
Summer High: the July high is around 93.6 degrees
Winter Low: the January low is 32.5
Rain: averages 40.9 inches of rain a year
Snow: averages 1.5 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Round Rock is 7.2 (10=best), which means it is more comfortable than most places in Texas.

The annual BestPlaces Comfort Index for Plano is 7.2 (10=best), which means it is more comfortable than most places in Texas.

Today's Weather - Plano, TX

60°F

Today's Weather - Round Rock, TX

63°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Plano / Round Rock

August is the hottest month for Plano with an average high temperature of 94.6°, which ranks it as cooler than most places in Texas. In Plano, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Plano are October, May and April.

August is the hottest month for Round Rock with an average high temperature of 96.3°, which ranks it as warmer than most places in Texas. In Round Rock, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Round Rock are April, October and March.

January has the coldest nighttime temperatures for Plano with an average of 32.5°. This is colder than most places in Texas.

January has the coldest nighttime temperatures for Round Rock with an average of 38.0°. This is about average compared to other places in Texas.

In Plano, there are 75.7 days annually when the high temperature is over 90°, which is cooler than most places in Texas.

In Round Rock, there are 104.7 days annually when the high temperature is over 90°, which is hotter than most places in Texas.

In Plano, there are 45.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Texas.

In Round Rock, there are 22.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Texas.

In Plano, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Texas.

In Round Rock, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Texas.

May is the wettest month in Plano with 5.5 inches of rain, and the driest month is August with 2.1 inches. The wettest season is Summer with 31% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 40.9 inches in Plano means that it is wetter than most places in Texas.


June is the wettest month in Round Rock with 4.6 inches of rain, and the driest month is January with 2.2 inches. The wettest season is Winter with 28% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 36.0 inches in Round Rock means that it is about average compared to other places in Texas.

May is the rainiest month in Plano with 8.9 days of rain, and August is the driest month with only 4.7 rainy days. There are 80.2 rainy days annually in Plano, which is rainier than most places in Texas. The rainiest season is Summer when it rains 29% of the time and the driest is Autumn with only a 21% chance of a rainy day.

March is the rainiest month in Round Rock with 8.3 days of rain, and August is the driest month with only 4.4 rainy days. There are 78.4 rainy days annually in Round Rock, which is rainier than most places in Texas. The rainiest season is Summer when it rains 29% of the time and the driest is Autumn with only a 21% chance of a rainy day.

An annual snowfall of 1.5 inches in Plano means that it is snowier than most places in Texas.

An annual snowfall of 0.2 inches in Round Rock means that it is about average compared to other places in Texas.

February is the snowiest month in Plano with 0.6 inches of snow, and 1 month of the year have significant snowfall.

February is the snowiest month in Round Rock with 0.1 inches of snow, and no months of the year have significant snowfall.