Mermentau Louisiana Climate Data

Monthly Average Climate Data for Mermentau Louisiana

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January5.4 °C15.8 °C163.58 mm
February7.4 °C17.9 °C114.3 mm
March10.9 °C21.7 °C92.96 mm
April14.7 °C25.3 °C127.76 mm
May19.2 °C29 °C138.68 mm
June22.5 °C31.8 °C161.54 mm
July23.4 °C32.7 °C141.48 mm
August23.1 °C33 °C153.16 mm
September20.7 °C31.1 °C135.89 mm
October14.9 °C26.9 °C122.17 mm
November9.7 °C21.2 °C123.95 mm
December6.6 °C17.1 °C121.41 mm
Annual14.9 °C25.3 °C1596.88 mm

Climate Data for Mermentau Louisiana

Average First Frost DateDec. 1 - Dec. 10
Average Last Frost DateMar. 1 - Mar. 10
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°C
Plant Hardiness Zone - 2012Zone 9a : -6.7°C to -3.9°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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