Southlake Texas Climate Data

Monthly Average Climate Data for Southlake Texas

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January35.1 °F56.4 °F2.5 in.
February38.7 °F60.3 °F2.73 in.
March46.4 °F68.0 °F3.41 in.
April54.2 °F76.0 °F3.4 in.
May63.9 °F83.4 °F4.63 in.
June71.9 °F91.5 °F3.83 in.
July75.4 °F95.9 °F2.23 in.
August75.2 °F96.1 °F2.33 in.
September67.8 °F89.0 °F3.16 in.
October56.4 °F78.8 °F4.37 in.
November45.7 °F66.9 °F2.86 in.
December37.1 °F58.1 °F3.01 in.
Annual55.7 °F76.7 °F38.46 in.

Climate Data for Southlake Texas

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateMar. 21 - Mar. 31
Average Days With Frost30-40 Days
Plant Hardiness Zone - 2023Zone 8b : 15°F to 20°F
Plant Hardiness Zone - 2012Zone 8a : 10°F to 15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate