Hurricanes and Tornadoes That Hit Berwick, LA

The nearest NOAA station with 1991–2020 climate normals is Morgan City, LA, 3 miles east of Berwick at 5 feet. July is the warmest, with an average high of 91°F and low of 76°F; January is the coolest, at 63°F and 45°F. August is the wettest at 7.3 inches of precipitation on average and February the driest at 3.3 inches; the year adds up to 58.6 inches over 78 days with at least a tenth of an inch. June to November, the hurricane season months, bring 58% of the year's precipitation (33.8 of 58.6 inches); the other six months are drier. September has brought the most of the 72 tropical systems that passed within 75 miles (31); a normal September there has highs of 88°F and 5.4 inches of precipitation. Highs reach 90°F on about 53 days a year, almost all from May to September. Lows fall below freezing on about 7 nights a year. That 58.6 inches is more than at 26 of the 81 Louisiana stations used on this site (32%). Pierre Part, 17 miles north, has its own station (Donaldsonville 4 SW, LA): 63.5 inches a year, 4.9 more than here, and the same July average high, 91°F.

Water temperature at the NOAA tide station Berwick, Atchafalaya River, LA, 2 miles south, averaged 87°F in August and 49°F in January over 2021–2025. It averaged 80°F or warmer from June to September.

Since 1996, the National Weather Service has logged 46 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Berwick: 29 thunderstorm wind reports, 9 flash floods, 4 lightning strikes, 3 heavy rain events and 1 flood. None is recorded as killing or injuring anyone; the NWS estimated $1.4 million in property and crop damage. The strongest thunderstorm gust on record here was 102 mph, on May 22, 2013. Of the 239 Louisiana cities on this site with a flash flood on record, 61 have had fewer than Berwick.

Flood insurance policyholders in Berwick's ZIP code 70342 have filed 121 claims with the National Flood Insurance Program since 1979, and were paid $1.4 million for buildings and contents, in the dollars of each year. The most came from Mid-spring storms in 2011: 10 claims (8% of all) and $203,000. The year with the most claims was 2019, with 22. 35% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 219 Louisiana cities on this site with 10 or more claims, 84 have fewer than Berwick.