Hurricanes and Tornadoes That Hit Prince Frederick, MD

The nearest NOAA station with 1991–2020 climate normals is Mechanicsville 5 NE, MD, 8 miles west of Prince Frederick at 100 feet. July is the warmest, with an average high of 85°F and low of 66°F; January is the coolest, at 44°F and 25°F. September is the wettest at 4.9 inches of precipitation on average and February the driest at 3.0 inches; the year adds up to 48.1 inches over 77 days with at least a tenth of an inch. June to November, the hurricane season months, bring 54% of the year's precipitation (26.0 of 48.1 inches); the other six months are drier. September has brought the most of the 46 tropical systems that passed within 75 miles (17); a normal September there has highs of 77°F and 4.9 inches of precipitation. Highs reach 90°F on about 16 days a year, almost all from June to August. Lows fall below freezing on about 98 nights a year. Snowfall averages 15.1 inches a year, most of it in February. That 48.1 inches is more than at 35 of the 41 Maryland stations used on this site (85%). Saint Leonard, 8 miles southeast, has its own station (Patuxent River NAS, MD): 45.4 inches a year, 2.7 less than here, and a July average high of 87°F against 85°F.

Water temperature at the NOAA tide station Solomons Island, MD, 17 miles southeast, averaged 82°F in July and 41°F in February over 2021–2025. It averaged 80°F or warmer from July to August. Sea level at the Solomons Island tide gauge, 17 miles from Prince Frederick, has risen 1.62 ± 0.05 inches per decade from 1937 to 2025, NOAA's linear trend; at that pace it is 16.2 inches in a hundred years. That is faster than at 99 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 199 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Prince Frederick: 163 thunderstorm wind reports, 27 floods, 7 flash floods and 2 lightning strikes. They killed 0 people and injured 1, and the NWS estimated $776,000 in property and crop damage. The strongest thunderstorm gust on record here was 75 mph, on June 8, 2022. August has had the most flash floods, 4 of 7. Of the 239 Maryland cities on this site with a flash flood on record, 6 have had fewer than Prince Frederick.

Flood insurance policyholders in Prince Frederick's ZIP code 20678 have filed 24 claims with the National Flood Insurance Program since 1989, and were paid $227,000 for buildings and contents, in the dollars of each year. 42% 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, 41 have fewer than Prince Frederick.