Hurricanes and Tornadoes That Hit La Porte, TX

The nearest NOAA station with 1991–2020 climate normals is Houston NWSO, TX, 14 miles south of La Porte at 19 feet. August is the warmest, with an average high of 92°F and low of 76°F; January is the coolest, at 64°F and 46°F. September is the wettest at 7.3 inches of precipitation on average and February the driest at 3.0 inches; the year adds up to 60.0 inches over 69 days with at least a tenth of an inch. June to November, the hurricane season months, bring 59% of the year's precipitation (35.1 of 60.0 inches); the other six months are drier. September has brought the most of the 56 tropical systems that passed within 75 miles (20); a normal September there has highs of 88°F and 7.3 inches of precipitation. Highs reach 90°F on about 76 days a year, almost all from May to October. Lows fall below freezing on about 9 nights a year. That 60.0 inches is more than at 304 of the 312 Texas stations used on this site (97%). Deer Park, 5 miles west, has its own station (Houston Hobby Airport, TX): 55.7 inches a year, 4.3 less than here, and an August average high of 94°F against 92°F.

Water temperature at the NOAA tide station Morgans Point, Barbours Cut, TX, 4 miles east, averaged 88°F in August and 57°F in January over 2021–2025. It averaged 80°F or warmer from June to September. Sea level at the Morgans Point tide gauge, 4 miles from La Porte, has risen 1.50 ± 0.24 inches per decade from 1993 to 2025, NOAA's linear trend; at that pace it is 15.0 inches in a hundred years. That is faster than at 90 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 124 flood, rain, thunderstorm wind and lightning events that began within 10 miles of La Porte: 84 thunderstorm wind reports, 28 flash floods, 8 lightning strikes, 3 heavy rain events and 1 flood. They killed 45 people and injured 16, and the NWS estimated $10.03 billion in property and crop damage. The strongest thunderstorm gust on record here was 86 mph, on June 21, 1997. August has had the most flash floods, 6 of 28. Of the 745 Texas cities on this site with a flash flood on record, 543 have had fewer than La Porte.

Flood insurance policyholders in La Porte's ZIP code 77571 have filed 4,801 claims with the National Flood Insurance Program since 1978, and were paid $169.1 million for buildings and contents, in the dollars of each year. The most came from Hurricane Ike in 2008: 1,360 claims (28% of all) and $89.3 million, then Tropical Storm Allison in 2001 with 793 and Hurricane Harvey in 2017 with 559. 92% 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, 422 have fewer than La Porte.