Marrero is a city of approximately 33,100 people in Louisiana, United States. Located in the Central Time Zone at 29.9°N latitude.
In 2025, Marrero recorded an average annual temperature of 70°F — right at the 30-year normal of 71°F. The hottest day reached 95°F in August; the coldest was 20°F in January. Total precipitation was 57 inches (drier than usual). The wettest month was May.
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