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Round Rock (TX) Weather and Climate: A Comprehensive Guide

Round Rock experiences great temperature shifts. The city's weather can transition from very hot days to mild weather. It receives a moderate amount of precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

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 in August to a moderate 16°C in January.

Nighttime temperatures can drop, with average lows reaching 3°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Round Rock receives mid-range precipitation levels, with 907 mm annually. The seasons in Round Rock, bring significant changes in precipitation. The wettest month, October, receives high rainfall, with an average of 116 mm of precipitation. This rainfall is distributed across 7 rainy days.

In contrast, the driest month, February, experiences much less rainfall, totaling 32 mm 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

Sunshine over the year

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

Data from: Austin, the United States of America (23 KM, 14 Miles).

Daily hours of sunshine

Data from: Austin, the United States of America (23 KM, 14 Miles).

Forecast for Round Rock (TX)

Fri   Dec 27
26°C | 6°C
S 5 m/s
clear and no rain

clear and no rain

Sat   Dec 28
27°C | 13°C
W 7 m/s
26 mm
partly cloudy and thunder

partly cloudy and thunder

Sun   Dec 29
23°C | 9°C
S 4 m/s
almost clear and no rain

almost clear and no rain

The best time of year to visit Round Rock in the United States of America

During the months of March and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Round Rock?
    August has an average maximum temperature of 36°C and is the warmest month of the year.
  • Which is the coldest month in Round Rock?
    The coldest month is January with an average maximum temperature of 16°C.
  • Which is the wettest month in Round Rock?
    October tops the wettest month list with 116 mm of rainfall.
  • Which is the driest month in Round Rock?
    February is the driest month with 32 mm of precipitation.
  • Which is the sunniest month in Round Rock?
    July is the sunniest month with an average of 317 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.