Hurricanes and Tornadoes That Hit Los Fresnos, TX

The nearest NOAA station with 1991–2020 climate normals is Port Isabel Cameron Airport, TX, 7 miles northeast of Los Fresnos at 19 feet. August is the warmest, with an average high of 93°F and low of 77°F; January is the coolest, at 70°F and 52°F. September is the wettest at 5.3 inches of precipitation on average and January the driest at 1.0 inches; the year adds up to 23.3 inches over 35 days with at least a tenth of an inch. June to November, the hurricane season months, bring 66% of the year's precipitation (15.3 of 23.3 inches); the other six months are drier. September has brought the most of the 42 tropical systems that passed within 75 miles (14); a normal September there has highs of 90°F and 5.3 inches of precipitation. Highs reach 90°F on about 121 days a year, almost all from March to October. Lows fall below freezing on about 1 nights a year. That 23.3 inches is more than at 68 of the 312 Texas stations used on this site (22%). Olmito, 8 miles southwest, has its own station (Brownsville, TX): 26.9 inches a year, 3.6 more than here, and an August average high of 96°F against 93°F.

Water temperature at the NOAA tide station Port Isabel, TX, 14 miles east, averaged 87°F in September and 62°F in February over 2021–2025. It averaged 80°F or warmer from May to October. Sea level at the Port Isabel tide gauge, 14 miles from Los Fresnos, has risen 1.71 ± 0.06 inches per decade from 1944 to 2025, NOAA's linear trend; at that pace it is 17.1 inches in a hundred years. That is faster than at 108 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 62 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Los Fresnos: 34 thunderstorm wind reports, 13 flash floods, 9 heavy rain events, 5 floods and 1 lightning strike. None is recorded as killing or injuring anyone; the NWS estimated $11.1 million in property and crop damage. The strongest thunderstorm gust on record here was 115 mph, on May 2, 2000. July has had the most flash floods, 4 of 13. Of the 745 Texas cities on this site with a flash flood on record, 275 have had fewer than Los Fresnos.

Flood insurance policyholders in Los Fresnos's ZIP code 78566 have filed 82 claims with the National Flood Insurance Program since 1980, and were paid $980,000 for buildings and contents, in the dollars of each year. The most came from Hurricane Dolly in 2008: 34 claims (41% of all) and $223,000. 54% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 433 Texas cities on this site with 10 or more claims, 214 have fewer than Los Fresnos.