Hahnville Weather Today

Hahnville is a small town in St. Charles Parish, Louisiana, located in the US. The climate in Hahnville is generally humid and subtropical, with hot, humid summers and mild, wet winters. The average temperature year round is around 68°F (20°C). The hottest months are July and August, when temperatures typically reach into the low 90s (32-35°C). The coldest months are December and January, when temperatures typically dip into the upper 40s (around 8-10°C). Rainfall is fairly evenly distributed throughout the year, with an average of around 60 inches (1,524 mm) annually.