Port Sulphur Louisiana Climate Data

Monthly Average Climate Data for Port Sulphur Louisiana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January46.5 °F61.6 °F5.18 in.
February49.5 °F64.9 °F4.07 in.
March55.1 °F70.4 °F4.24 in.
April61.9 °F76.5 °F4.44 in.
May69.5 °F82.2 °F5.25 in.
June74.8 °F88.7 °F7.23 in.
July76.9 °F89.1 °F8.83 in.
August77.0 °F89.3 °F8.41 in.
September74.5 °F86.1 °F6.19 in.
October66.5 °F79.5 °F4.46 in.
November56.2 °F70.7 °F4.13 in.
December49.0 °F64.0 °F3.81 in.
Annual63.1 °F76.9 °F66.24 in.

Climate Data for Port Sulphur Louisiana

Average First Frost DateDec. 11 - Dec. 20
Average Last Frost DateFeb. 21 - Feb. 29
Average Days With Frost5-10 Days
Plant Hardiness Zone - 2023Zone 9b : 25°F to 20°F
Plant Hardiness Zone - 2012Zone 9b : 25°F to 20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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