Rockwall, TX 

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Climate in Rockwall, TX

Rockwall, TX has a humid subtropical climate with hot summers and mild winters. Temperatures in the summer can reach as high as 95 degrees Fahrenheit, while winter temperatures rarely drop below freezing. The average annual precipitation is around 37 inches, which is spread throughout the year in both rainfall and snowfall. During the summer months, thunderstorms are common due to moisture from the Gulf of Mexico. The area experiences all four seasons, although winters are usually brief.

Rockwall, Texas gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Rockwall averages 1 inches of snow per year. The US average is 28 inches of snow per year.

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

Rockwall gets some kind of precipitation, on average, 81 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 94 degrees
Winter Low: the January low is 34
Rain: averages 40 inches of rain a year
Snow: averages 1 inches of snow a year


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

4.2 / 7.4

Summer   /   Winter
October, April and May are the most pleasant months in Rockwall, while July and August are the least comfortable months.

Climate Averages
  Rockwall, TexasUnited States
  40.3 in.38.1 in.
  0.6 in.27.8 in.
  81.2 days106.2 days
  236 days205 days
  591 ft.2443 ft.


Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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.

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

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

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 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.

Humidity in Rockwall can be uncomfortable during the summer, but comfortable for most of the year. The most uncomfortably humid months are July, June and August. The humid season runs from May-September and the most comfortable months are October-April.

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.

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.

An annual snowfall of 0.6 inches in Rockwall means that it is snowier than most places in Texas. December is the snowiest month in Rockwall with 0.1 inches of snow, and no months of the year have significant snowfall.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Rockwall    8 Reviews
    Move here if you like high housing taxes and conge - 11/7/2018
    I've lived here for over 10 years now and it is not at all what it used to be. The traffic is horrible now, the lights take forever and are programmed to slow traffic... Read More

    Start Your Review of Rockwall

    Rockwall is truly a wonderful place to live - 6/29/2012
    Looking for a beautiful, family friendly, low crime, affluent COMMUNITY? Look no further. From the Harbor on beautiful Lake Ray Hubbard to the farmer’s market to the... Read More

    Statistics don't represent Rockwall well - 5/16/2011
    After reading the information on Rockwall, I think it deserves some persepctive. Rockwall and its outlying areas is very habitable for moderate income families who do... Read More

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