Hurricanes and Tornadoes That Hit Grand Bay, AL

The nearest NOAA station with 1991–2020 climate normals is Coden, AL, 9 miles southeast of Grand Bay at 12 feet. July is the warmest, with an average high of 88°F and low of 73°F; January is the coolest, at 60°F and 40°F. July is the wettest at 8.2 inches of precipitation on average and November the driest at 4.0 inches; the year adds up to 69.0 inches over 79 days with at least a tenth of an inch. June to November, the hurricane season months, bring 53% of the year's precipitation (36.8 of 69.0 inches); the other six months are drier. September has brought the most of the 69 tropical systems that passed within 75 miles (28); a normal September there has highs of 86°F and 6.0 inches of precipitation. Highs reach 90°F on about 29 days a year, almost all from June to September. Lows fall below freezing on about 28 nights a year. That 69.0 inches is more than at 103 of the 107 Alabama stations used on this site (96%). Theodore, 10 miles east, has its own station (Mobile Dwtn Airport, AL): 60.6 inches a year, 8.4 less than here, and a July average high of 92°F against 88°F.

Water temperature at the NOAA tide station Pascagoula NOAA Lab, MS, 16 miles southwest, averaged 86°F in August and 56°F in January over 2021–2025. It averaged 80°F or warmer from June to September. Sea level at the Dauphin Island tide gauge, 22 miles from Grand Bay, has risen 1.72 ± 0.10 inches per decade from 1966 to 2025, NOAA's linear trend; at that pace it is 17.2 inches in a hundred years. That is faster than at 109 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 85 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Grand Bay: 44 thunderstorm wind reports, 35 flash floods and 6 heavy rain events. They killed 0 people and injured 1, and the NWS estimated $332,000 in property and crop damage. The strongest thunderstorm gust on record here was 81 mph, on July 21, 2000. June has had the most flash floods, 11 of 35. Of the 321 Alabama cities on this site with a flash flood on record, 259 have had fewer than Grand Bay.

Flood insurance policyholders in Grand Bay's ZIP code 36541 have filed 42 claims with the National Flood Insurance Program since 1979, and were paid $827,000 for buildings and contents, in the dollars of each year. 55% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 118 Alabama cities on this site with 10 or more claims, 60 have fewer than Grand Bay.