Hurricanes and Tornadoes That Hit Sweeny, TX

The nearest NOAA station with 1991–2020 climate normals is Angleton Brazoria Airport, TX, 16 miles east of Sweeny at 25 feet. August is the warmest, with an average high of 93°F and low of 75°F; January is the coolest, at 65°F and 45°F. September is the wettest at 6.0 inches of precipitation on average and February the driest at 2.2 inches; the year adds up to 45.8 inches over 59 days with at least a tenth of an inch. June to November, the hurricane season months, bring 57% of the year's precipitation (25.9 of 45.8 inches); the other six months are drier. September has brought the most of the 61 tropical systems that passed within 75 miles (20); a normal September there has highs of 89°F and 6.0 inches of precipitation. Highs reach 90°F on about 94 days a year, almost all from May to October. Lows fall below freezing on about 10 nights a year. That 45.8 inches is more than at 245 of the 312 Texas stations used on this site (79%). West Columbia, 7 miles northeast, has its own station (Angleton 2 W, TX): 53.5 inches a year, 7.7 more than here, and an August average high of 92°F against 93°F.

Sea level at the Freeport Harbor tide gauge, 27 miles from Sweeny, has risen 1.38 ± 0.12 inches per decade from 1972 to 2025, NOAA's linear trend; at that pace it is 13.8 inches in a hundred years. That is faster than at 82 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 32 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Sweeny: 25 thunderstorm wind reports and 7 flash floods. None is recorded as killing or injuring anyone; the NWS estimated $2.8 million in property and crop damage. The strongest thunderstorm gust on record here was 81 mph, on April 17, 2015. July has had the most flash floods, 3 of 7. Of the 745 Texas cities on this site with a flash flood on record, 115 have had fewer than Sweeny.

Flood insurance policyholders in Sweeny's ZIP code 77480 have filed 363 claims with the National Flood Insurance Program since 1979, and were paid $14.1 million for buildings and contents, in the dollars of each year. The most came from Flooding in 2002: 145 claims (40% of all) and $3.0 million, then Hurricane Harvey in 2017 with 98 and Tropical Storm Claudette in 1979 with 17. The year with the most claims was 2017, with 99. 74% 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, 325 have fewer than Sweeny.