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Rockwall, TX Weather


Rockwall, TX climate is hot during summer when temperatures tend to be in the 80's and cold during winter when temperatures tend to be in the 40's.

The warmest month of the year is August with an average maximum temperature of 94.50 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 30.80 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 23 degrees Fahrenheit, and moderate during winter with an average difference of 23 degrees Fahrenheit.

The annual average precipitation at Rockwall is 39.34 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 5.26 Inches.

Weather Data

Normal Climate

Normal Temperatures

(LAVON DAM Weather station, 6.94 miles from Rockwall)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 53.4 58.9 66.9 74.5 81.9 89.6 94.2 94.5 88.0 78.2 65.2 56.3 75.1
Mean °F 42.1 47.3 55.2 62.9 71.0 78.5 82.8 82.6 76.2 65.7 53.8 45.1 63.6
Min °F 30.8 35.6 43.4 51.2 60.0 67.4 71.3 70.7 64.3 53.1 42.4 33.9 52.0

Normal Precipitation

(ROCKWALL Weather station, 0.61 miles from Rockwall)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 2.08 2.69 3.45 3.63 5.26 3.70 2.31 2.03 3.03 4.57 3.36 3.23 39.34