Rockwall (TX) monthly weather averages

Average daytime temperature

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

Rockwall average temperature chart (Celsius) Rockwall average temperature chart (Fahrenheit)
Average monthly temperatures in Rockwall (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 11.5 14.2 19.2 24 27.7 31.9 34.6 34.7 30.5 25.2 18.9 13.3
°F 52.7 57.6 66.6 75.1 81.8 89.4 94.2 94.5 86.8 77.4 65.9 56

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.

Rockwall monthly rainfall chart (mm) Rockwall monthly rainfall chart (inches)
Average monthly rainfall in Rockwall (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 54 70 84 104 138 88 64 55 96 101 75 65
inches 2.1 2.7 3.3 4.1 5.4 3.5 2.5 2.2 3.8 4 2.9 2.5
Rainy days 7 7 8 8 9 7 5 5 7 6 7 7

Average annual rainfall in Rockwall: 929.6mm (366 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Rockwall

Rockwall average daily sunshine chart
Average daily sunshine Rockwall
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.2 6.7 7.7 8.3 8.9 10.6 11.3 10.4 8.7 7.9 6.5 6

Day / night temperatures

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

Rockwall average minimum / maximum temperatures (Celsius) Rockwall average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Rockwall (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0 2.3 6.9 12 16.3 20.5 22.8 22.4 18.9 12.5 6.9 1.8
Max °C 11.8 14.5 19.5 24.3 28 32.2 34.9 35 30.8 25.6 19.2 13.6
Min °F 32 36.1 44.4 53.5 61.3 68.8 73 72.3 65.9 54.4 44.3 35.2
Max °F 42.6 47.1 55.8 64.6 71.8 79.3 83.8 83.7 76.6 66.2 55.4 45.9

Sea temperature

The graph below shows the average sea temperature.

Rockwall average sea temperature chart (Celsius) Rockwall average sea temperature chart (Fahrenheit)
Average sea temperature around Rockwall in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 15.4 15.1 16 17.9 20.5 23.3 25.3 26.5 25.5 22.5 19.4 17
°F 59.8 59.2 60.8 64.2 68.9 73.9 77.6 79.8 77.9 72.4 67 62.6

Wind speed

The graph below shows the average wind speed.

Rockwall average winspeed by month (km/h) Rockwall average winspeed by month (mph)
Average wind speed in Rockwall (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 19 20 20 17 16 15 14 15 16 17 17
mph 11 12 13 12 11 10 9 9 9 10 11 11

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.

Rockwall relative humidity averages
Average relative humidity in Rockwall
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
69% 67% 65% 66% 71% 68% 63% 63% 69% 67% 69% 70%

Other monthly averages

UV index Best time to go?

Rockwall weather stats

Rockwall weather statistics
Hottest month: July 34.6°C 94.3°F
Driest month: January 54mm 2.1ins
Sunniest month: July 11.3hrs
Coldest month: January 11.5°C 52.7°F
Wettest month: May 138mm 5.4ins
Warmest sea: August 26.5°C 79.7°F
Map showing location of Rockwall (32.93123, -96.45971) Rockwall map pin © Google

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