Historical weather data, all-time temperature records, and monthly climate averages for Gonzales, LA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Gonzales sits squarely in the mild stretch of spring, with an average high of 75° and low of 55° across 86 years of records. The date has seen a 51-degree swing in extremes — from a scorching 87° in 1940 down to a sharp 36° in 1987. Skies are typically clear, with only a 21% chance of rain today.
Gonzales runs hot — the all-time record of 104° hit on August 30, 2000, is a reminder of just how brutal late summer gets in South Louisiana. The other end of the spectrum came on January 11, 1982, when temperatures bottomed out at 10°. The wettest single day on record dumped 8.13 inches on October 25, 2015, the kind of rain event this Gulf-adjacent region is built to remember.
Gonzales is warm most of the year, peaking in the Jul–Aug window when average highs sit at 91°, and cooling to a mild 61° in early January — never truly cold. The wettest stretch falls at the end of June into early July, averaging 1.69 inches per week. If you're looking for the sweet spot, April and October offer comfortable highs in the upper 70s to low 80s with lower humidity and rain chances.