Historical weather data, all-time temperature records, and monthly climate averages for Destrehan, LA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Destrehan typically feels like spring is settling in, with average highs of 75° and lows around 58°. There's about a 1-in-4 chance of rain today, though it's been as warm as 86° on this date (1955) and as cold as 39° (1973) — Louisiana keeps you guessing.
Destrehan runs hot and occasionally wild: the all-time high hit 105° in August 2023, while the coldest moment on record was a jarring 11° in December 1989. The wettest single day dumped 12.24 inches in May 1995, and in a jaw-dropping January 2025 storm, 8 inches of snow fell — remarkable for this corner of Louisiana.
Summers here are long and relentless, with average highs holding at 91° from late June through July and August — also the wettest stretch of the year. If you're heat-averse, the window between October and March is your best bet, with the coolest week of the year (Jan 8–14) averaging a mild 61°. Spring and fall offer the most comfortable conditions before the humidity takes over.