Hurricanes and Tornadoes That Hit Portland, TX

The nearest NOAA station with 1991–2020 climate normals is Corpus Christi NWS, TX, 13 miles southwest of Portland at 44 feet. August is the warmest, with an average high of 93°F and low of 77°F; January is the coolest, at 66°F and 47°F. September is the wettest at 5.4 inches of precipitation on average and January and February the driest at 1.4 inches; the year adds up to 31.2 inches over 41 days with at least a tenth of an inch. June to November, the hurricane season months, bring 61% of the year's precipitation (18.9 of 31.2 inches); the other six months are drier. Highs reach 90°F on about 113 days a year, almost all from April to October. Lows fall below freezing on about 4 nights a year. That 31.2 inches is more than at 122 of the 312 Texas stations used on this site (39%). Gregory, 3 miles northeast, has its own station (Port Aransas, TX): 35.5 inches a year, 4.3 more than here, and an August average high of 89°F against 93°F.

Water temperature at the NOAA tide station La Quinta Channel North, TX, 3 miles east, averaged 88°F in August and 59°F in January over 2021–2025. It averaged 80°F or warmer from May to October. Sea level at the Packery Channel tide gauge, 18 miles from Portland, has risen 2.41 ± 0.21 inches per decade from 1988 to 2025, NOAA's linear trend; at that pace it is 24.1 inches in a hundred years. That is faster than at 134 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 131 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Portland: 67 flash floods, 59 thunderstorm wind reports, 3 floods and 2 heavy rain events. None is recorded as killing or injuring anyone; the NWS estimated $44.2 million in property and crop damage. The strongest thunderstorm gust on record here was 100 mph, on January 9, 2011. April has had the most flash floods, 16 of 67. Of the 745 Texas cities on this site with a flash flood on record, 709 have had fewer than Portland.

Flood insurance policyholders in Portland's ZIP code 78374 have filed 204 claims with the National Flood Insurance Program since 1979, and were paid $2.0 million for buildings and contents, in the dollars of each year. The most came from Hurricane Harvey in 2017: 49 claims (24% of all) and $260,000. 33% 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, 291 have fewer than Portland.