Historical weather data, all-time temperature records, and monthly climate averages for Brownsville, FL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Brownsville runs warm, with an average high of 82° and low of 67° across 85 years of records. The date has seen a 44-degree swing in extremes — from a balmy 91° in 1975 down to a jarring 47° in 1987. Rain is unlikely today, with only a 19% historical chance of precipitation.
Brownsville is a legitimately hot place — its all-time record of 100° was set in July 1942, and even its coldest-ever day only dipped to 28° back in January 1981. The real drama here is rainfall: a single day in April 1979 dropped a staggering 16.39 inches, one of the more extreme single-day totals you'll find anywhere in Florida.
Brownsville stays warm year-round, with average highs never falling below 76° even in the coldest week of January. Summer dominates the heat calendar from June through September, peaking around 90-91° in late July and early August. If you're trying to dodge the rain, avoid late June — that's historically the wettest stretch of the year, averaging nearly 2.5 inches in a single week.