2025 Compare Climate & Weather:
Rockwall, TX vs Maryville, TN

Highlights

On average, there are 200 sunny days per year in Maryville. Rockwall averages 236 sunny days per year. The US average is 205 sunny days.

Maryville, Tennessee gets 50 inches of rain, on average, per year. Rockwall, Texas gets 40.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Maryville averages 6 inches of snow per year. Rockwall averages 0.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Maryville, Tennessee
Summer High: the July high is around 88 degrees
Winter Low: the January low is 28
Rain: averages 50 inches of rain a year
Snow: averages 6 inches of snow a year

Rockwall, Texas
Summer High: the July high is around 94.3 degrees
Winter Low: the January low is 33.9
Rain: averages 40.3 inches of rain a year
Snow: averages 0.6 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Maryville is 7.4 (10=best), which means it is more comfortable than most places in Tennessee.

The annual BestPlaces Comfort Index for Rockwall is 7.1 (10=best), which means it is about average compared to other places in Texas.

Today's Weather - Rockwall, TX

75°F

Today's Weather - Maryville, TN

74°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Rockwall / Maryville

August is the hottest month for Rockwall with an average high temperature of 95.5°, which ranks it as about average compared to other places in Texas. In Rockwall, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rockwall are October, April and May.

July is the hottest month for Maryville with an average high temperature of 88.0°, which ranks it as cooler than most places in Tennessee. In Maryville, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Maryville are May, September and October.

January has the coldest nighttime temperatures for Rockwall with an average of 33.9°. This is colder than most places in Texas.

January has the coldest nighttime temperatures for Maryville with an average of 28.0°. This is warmer than most places in Tennessee.

In Rockwall, there are 84.4 days annually when the high temperature is over 90°, which is cooler than most places in Texas.

In Maryville, there are 29.7 days annually when the high temperature is over 90°, which is cooler than most places in Tennessee.

In Rockwall, there are 37.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Texas.

In Maryville, there are 77.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Tennessee.

In Rockwall, 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 Maryville, there are 0.4 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Tennessee.

May is the wettest month in Rockwall with 5.0 inches of rain, and the driest month is August with 1.9 inches. The wettest season is Summer with 30% of yearly precipitation and 20% occurs in Autumn, which is the driest season. The annual rainfall of 40.3 inches in Rockwall means that it is wetter than most places in Texas.


July is the wettest month in Maryville with 5.2 inches of rain, and the driest month is October with 2.7 inches. The wettest season is Spring with 28% of yearly precipitation and 21% occurs in Winter, which is the driest season. The annual rainfall of 50.0 inches in Maryville means that it is drier than most places in Tennessee.

May is the rainiest month in Rockwall with 8.7 days of rain, and July is the driest month with only 4.6 rainy days. There are 81.2 rainy days annually in Rockwall, 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 20% chance of a rainy day.

March is the rainiest month in Maryville with 12.1 days of rain, and September is the driest month with only 8.0 rainy days. There are 128.0 rainy days annually in Maryville, which is rainier than most places in Tennessee. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 21% chance of a rainy day.

An annual snowfall of 0.6 inches in Rockwall means that it is snowier than most places in Texas.

An annual snowfall of 6.0 inches in Maryville means that it is snowier than most places in Tennessee.

December is the snowiest month in Rockwall with 0.1 inches of snow, and no months of the year have significant snowfall.

January is the snowiest month in Maryville with 2.6 inches of snow, and 4 months of the year have significant snowfall.