Round Rock (TX) monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Round Rock

Round Rock average temperature chart (Celsius) Round Rock average temperature chart (Fahrenheit)
Average monthly temperatures in Round Rock (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 14.1 16.5 21.1 25.6 28.7 32.2 34.6 34.8 31.5 26.7 20.9 15.8
°F 57.3 61.7 70.1 78 83.6 90 94.2 94.6 88.6 80.1 69.7 60.5

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Round Rock monthly rainfall chart (mm) Round Rock monthly rainfall chart (inches)
Average monthly rainfall in Round Rock (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 45 61 53 70 117 89 49 56 87 88 61 53
inches 1.8 2.4 2.1 2.8 4.6 3.5 1.9 2.2 3.4 3.5 2.4 2.1
Rainy days 7 7 7 7 9 7 5 5 8 7 7 7

Average annual rainfall in Round Rock: 760.033mm (299.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Round Rock

Round Rock average daily sunshine chart
Average daily sunshine Round Rock
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.9 6.6 7.3 7.5 8 10.2 10.9 10.2 8.4 7.6 6.2 5.6

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Round Rock average minimum / maximum temperatures (Celsius) Round Rock average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Round Rock (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1.9 3.8 8.6 13.6 17.7 20.9 22.4 22.1 19.5 13.8 8.2 3.5
Max °C 14.4 16.8 21.5 25.9 29 32.5 34.9 35.1 31.8 27.1 21.3 16.2
Min °F 35.3 38.8 47.4 56.4 63.8 69.6 72.2 71.8 67 56.8 46.7 38.2
Max °F 46.6 50.5 59 67.5 73.9 80.1 83.5 83.5 78.1 68.7 58.5 49.6

Sea temperature

The graph below shows the average sea temperature.

Round Rock average sea temperature chart (Celsius) Round Rock average sea temperature chart (Fahrenheit)
Average sea temperature around Round Rock in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 17.1 16.6 17.7 20.1 23.2 26.4 28.2 29 28.1 25.3 21.8 19
°F 62.8 61.9 63.9 68.1 73.8 79.5 82.8 84.2 82.6 77.5 71.3 66.2

Wind speed

The graph below shows the average wind speed.

Round Rock average winspeed by month (km/h) Round Rock average winspeed by month (mph)
Average wind speed in Round Rock (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 18 19 19 17 16 15 14 14 15 16 16
mph 11 11 12 12 11 10 9 9 9 9 10 10

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Round Rock relative humidity averages
Average relative humidity in Round Rock
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
67% 66% 64% 66% 70% 69% 64% 63% 68% 67% 69% 68%

Other monthly averages

UV index Best time to go?

Round Rock weather stats

Round Rock weather statistics
Hottest month: July 34.6°C 94.3°F
Driest month: January 45mm 1.8ins
Sunniest month: July 10.9hrs
Coldest month: January 14.1°C 57.4°F
Wettest month: May 117mm 4.6ins
Warmest sea: August 29°C 84.2°F
Map showing location of Round Rock (30.50826, -97.6789) Round Rock map pin © Google

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