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March Weather in Round Rock, United States

Last updated: June 24, 2025

In March, the average temperature in Round Rock, United States is a crisp 8°C (46°F). While you might experience a chilly minimum of -12°C (10°F), temperatures can soar to a pleasant 26°C (79°F) on warmer days. Expect about 31 mm (1.2 in) of precipitation spread over 7 days, with an average humidity of 76% adding to the atmosphere.

March Temperature in Round Rock

In March in Round Rock, the average temperature is 8°C (46°F), with maximums reaching 26°C (79°F) and minimums going as low as -12°C (10°F). This variability in temperatures makes it essential for travelers to pack accordingly for both warm and cold conditions.

March Weather in Round Rock: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Round Rock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Round Rock, March typically has an average temperature of 8°C (46°F), with highs reaching up to 26°C (79°F) and lows dropping to around -12°C (10°F).
JanFebMarAprMayJunJulAugSepOctNovDec323846556376797869544433
Data source: Temperature data for Round Rock generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Round Rock

In Round Rock in March, the precipitation amount is 31 mm (1.2 in) over the course of 7 days.

March Precipitation Trends in Round Rock

The chart displays monthly precipitation patterns in Round Rock, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Round Rock, March typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec2222321014314512211022
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Round Rock

In Round Rock in March, humidity is 76%. With an average temperature of 8°C (46°F), this humidity feels like a chilly dampness that seeps into your bones, making travel less enjoyable as the cold air mixes with the moisture, creating an uneasy, heavy atmosphere that can hinder your outdoor plans.

March Average Humidity in Round Rock

This chart illustrates the average monthly humidity levels in Round Rock, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Round Rock is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%76%69%53%40%36%44%59%74%83%86%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Round Rock

In Round Rock in March, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Round Rock.

Maximum UV Index Levels in Round Rock for March

The chart shows the monthly maximum UV Index (UVI) for Round Rock in March, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In March, the maximum UV index in Round Rock typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479111213131211864
Data source: Round Rock March UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How March Weather in Round Rock Compares to Other Months

Weather in Round Rock varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Round Rock, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Round Rock, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)22 mm (0.9 inches)85%moderate
February Weather3°C (38°F)22 mm (0.9 inches)86%high
March Weather8°C (46°F)31 mm (1.2 inches)76%very high
April Weather13°C (55°F)10 mm (0.4 inches)69%extreme
May Weather17°C (63°F)14 mm (0.6 inches)53%extreme
June Weather24°C (76°F)3 mm (0.1 inches)40%extreme
July Weather26°C (80°F)14 mm (0.5 inches)36%extreme
August Weather25°C (78°F)4 mm (0.2 inches)44%extreme
September Weather21°C (69°F)12 mm (0.5 inches)59%extreme
October Weather12°C (54°F)21 mm (0.8 inches)74%very high
November Weather7°C (44°F)10 mm (0.4 inches)83%high
December Weather1°C (34°F)22 mm (0.8 inches)85%moderate

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