Historical weather data, all-time temperature records, and monthly climate averages for Lafayette, LA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Lafayette lands right in the sweet spot of spring, with an average high of 76° and low of 56° across 133 years of records. The date has swung from a balmy 87° back in 1893 to a teeth-chattering 33° in 1920, though a freeze like that is ancient history now. Rain is unlikely today — only an 18% chance — and snow has never been recorded on this date.
Lafayette's weather has real range for a Deep South city: an all-time high of 110° recorded in August 2023 and an all-time low of 4° just last January 2025. The wettest single day on record dumped 10.4 inches during the catastrophic August 2016 flooding, a reminder of how intense Gulf moisture can get. Even snow has made a surprise appearance — 14 inches fell in a single day in February 1895.
Lafayette runs hot for a long stretch, with average highs above 90° from June through September and peaking at 92° in late July and early August. If you're looking for the most comfortable temperatures, aim for spring or fall — April hits 79° and October 81°. July is the wettest time of year, averaging over 1.6 inches in a single week, while the coolest and driest stretch is January with highs around 62°.