Hurricanes and Tornadoes That Hit Port Aransas, TX

The nearest NOAA station with 1991–2020 climate normals is Port Aransas, TX, 2 miles northeast of Port Aransas at 12 feet. August is the warmest, with an average high of 89°F and low of 80°F; January is the coolest, at 62°F and 50°F. September is the wettest at 6.5 inches of precipitation on average and December the driest at 1.7 inches; the year adds up to 35.5 inches over 44 days with at least a tenth of an inch. June to November, the hurricane season months, bring 60% of the year's precipitation (21.4 of 35.5 inches); the other six months are drier. August has brought the most of the 43 tropical systems that passed within 75 miles (13); a normal August there has highs of 89°F and 1.8 inches of precipitation. Highs reach 90°F on about 57 days a year, almost all from June to October. Lows fall below freezing on about 1 nights a year. That 35.5 inches is more than at 159 of the 312 Texas stations used on this site (51%). Portland, 15 miles west, has its own station (Corpus Christi NWS, TX): 31.2 inches a year, 4.3 less than here, and an August average high of 93°F against 89°F.

Water temperature at the NOAA tide station Port Aransas, TX, 2 miles north, averaged 87°F in August and 60°F in February over 2021–2025. It averaged 80°F or warmer from May to October. Sea level at the Rockport tide gauge, 14 miles from Port Aransas, has risen 2.38 ± 0.09 inches per decade from 1937 to 2025, NOAA's linear trend; at that pace it is 23.8 inches in a hundred years. That is faster than at 132 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 52 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Port Aransas: 23 thunderstorm wind reports, 20 flash floods, 6 floods, 2 lightning strikes and 1 heavy rain event. They killed 1 person and injured 0, and the NWS estimated $1.0 million in property and crop damage. The strongest thunderstorm gust on record here was 83 mph, on September 12, 2003. May has had the most flash floods, 8 of 20. Of the 745 Texas cities on this site with a flash flood on record, 438 have had fewer than Port Aransas.

Flood insurance policyholders in Port Aransas's ZIP code 78373 have filed 3,486 claims with the National Flood Insurance Program since 1978, and were paid $144.5 million for buildings and contents, in the dollars of each year. The most came from Hurricane Harvey in 2017: 3,067 claims (88% of all) and $142.3 million, then Hurricane Allen in 1980 with 109 and Flooding in 1979 with 91. 95% 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, 408 have fewer than Port Aransas.