Hurricanes and Tornadoes That Hit St Michaels, MD

The nearest NOAA station with 1991–2020 climate normals is Royal Oak 2 SSW, MD, 5 miles south of St Michaels at 10 feet. July is the warmest, with an average high of 88°F and low of 70°F; January is the coolest, at 45°F and 29°F. August is the wettest at 4.8 inches of precipitation on average and February the driest at 3.1 inches; the year adds up to 47.7 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 (25.1 of 47.7 inches); the other six months are drier. September has brought the most of the 48 tropical systems that passed within 75 miles (17); a normal September there has highs of 80°F and 4.2 inches of precipitation. Highs reach 90°F on about 32 days a year, almost all from May to September. Lows fall below freezing on about 69 nights a year. Snowfall averages 14.1 inches a year, most of it in January. That 47.7 inches is more than at 31 of the 41 Maryland stations used on this site (76%). Shady Side, 16 miles west, has its own station (Upper Marlboro 3 NNW, MD): 45.1 inches a year, 2.6 less than here, and the same July average high, 88°F.

Water temperature at the NOAA tide station Cambridge, MD, 17 miles southeast, averaged 83°F in July and 39°F in January over 2021–2025. It averaged 80°F or warmer from July to August. Sea level at the Cambridge tide gauge, 17 miles from St Michaels, has risen 1.59 ± 0.06 inches per decade from 1943 to 2025, NOAA's linear trend; at that pace it is 15.9 inches in a hundred years. That is faster than at 97 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 188 flood, rain, thunderstorm wind and lightning events that began within 10 miles of St Michaels: 148 thunderstorm wind reports, 22 heavy rain events, 9 flash floods, 8 lightning strikes and 1 flood. None is recorded as killing or injuring anyone; the NWS estimated $273,000 in property and crop damage. The strongest thunderstorm gust on record here was 104 mph, on July 3, 2023. August has had the most flash floods, 5 of 9. Of the 239 Maryland cities on this site with a flash flood on record, 15 have had fewer than St Michaels.

Flood insurance policyholders in St Michaels's ZIP code 21663 have filed 88 claims with the National Flood Insurance Program since 1979, and were paid $1.6 million for buildings and contents, in the dollars of each year. The most came from Hurricane Isabel in 2003: 52 claims (59% of all) and $1.1 million. 72% of the claims carry the name of a storm or flood event; the rest have no event name. Of the 150 Maryland cities on this site with 10 or more claims, 105 have fewer than St Michaels.