Port Arthur Texas Climate Data

Monthly Average Climate Data for Port Arthur Texas

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January43.1 °F61.3 °F5.61 in.
February46.9 °F65.1 °F3.6 in.
March52.9 °F71.2 °F4.15 in.
April59.6 °F77.3 °F3.8 in.
May67.6 °F83.9 °F5.13 in.
June73.7 °F89.3 °F6.89 in.
July75.3 °F91.1 °F6.25 in.
August74.9 °F91.7 °F6.97 in.
September70.3 °F88.1 °F6.51 in.
October60.7 °F80.5 °F5.33 in.
November51.0 °F70.6 °F4.43 in.
December45.0 °F63.5 °F4.79 in.
Annual60.1 °F77.8 °F63.46 in.

Climate Data for Port Arthur Texas

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateFeb. 21 - Feb. 29
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 9b : 25°F to 20°F
Plant Hardiness Zone - 2012Zone 9a : 20°F to 25°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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