Round Rock (TX) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Round Rock.
Climate overview of Round Rock
Temperatures in Round Rock, Texas, United States of America, vary greatly throughout the year. August is the hottest month at 36°C (97°F), while January is the coldest at 16°C (61°F).
The city receives around 907 mm (36 in) of rain/snowfall per year. October is the wettest month and February the driest. Sunshine peaks in July, when the city sees around 10.6 hours of sunshine per day.
Round Rock Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Round Rock — and find the best time to visit.
Monthly Temperature in Round Rock
The climate in Round Rock is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very hot 36°C (97°F) in August to a moderate 16°C (61°F) in January.
Nighttime temperatures range from 23°C (73°F) in August to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Round Rock
Generally, Round Rock receives mid-range precipitation levels, with 907 mm (36 in) annually. The seasons in Round Rock bring significant changes in precipitation. The wettest month, October, receives high rainfall, with an average of 116 mm (4.6 in) of precipitation. This rainfall is distributed across 7 rainy days.
In contrast, the driest month, February, experiences much less rainfall, totaling 32 mm (1.3 in) over 7 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Round Rock Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Round Rock
In Round Rock, summer days are longer and more sunny, with daily sunshine hours peaking at 10.6 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 5.1 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Round Rock by Month
The relative humidity is high throughout the year in Round Rock.
The city experiences its highest humidity in May, reaching 71%. In March, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Round Rock
The average wind speed over the year ranges from 3 m/s (6 knots) to 4 m/s (8 knots). It is lower in January, May, June, July, August, September, October, November and December and higher in February, March and April. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Round Rock
Frequently asked questions about the climate in Round Rock
What is the best time to visit Round Rock?
March, April and November typically offer the most optimal weather in Round Rock. In contrast, June, July, August and September tend to have less optimal conditions.
What temperatures can I expect in Round Rock?
Daytime highs range from 16°C (61°F) in January to 36°C (97°F) in August. Nighttime lows range from 3°C (37°F) to 23°C (73°F). Temperatures vary considerably through the year.
How much rain does Round Rock get?
Annual rainfall is around 907 mm (36 in). October is the wettest month with 116 mm (4.6 in), while February is the driest with 32 mm (1.3 in).
How sunny is Round Rock?
Round Rock receives around 2,645 hours of sunshine per year. July is the sunniest month with 317 hours, while December is the cloudiest with just 154 hours. Overall, Round Rock enjoys abundant sunshine.
Round Rock 3-Day Forecast
Round Rock (TX) 3-Day Forecast
Round Rock on the map
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