Hurricanes and Tornadoes That Hit Linthicum, MD

The nearest NOAA station with 1991–2020 climate normals is Baltimore Wash International Airport, MD, 3 miles south of Linthicum at 156 feet. July is the warmest, with an average high of 89°F and low of 68°F; January is the coolest, at 43°F and 25°F. July is the wettest at 4.5 inches of precipitation on average and February the driest at 2.9 inches; the year adds up to 45.0 inches over 75 days with at least a tenth of an inch. June to November, the hurricane season months, bring 53% of the year's precipitation (24.0 of 45.0 inches); the other six months are drier. September has brought the most of the 35 tropical systems that passed within 75 miles (12); a normal September there has highs of 80°F and 4.4 inches of precipitation. Highs reach 90°F on about 34 days a year, almost all from May to September. Lows fall below freezing on about 93 nights a year. Snowfall averages 19.3 inches a year, most of it in February. That 45.0 inches is more than at 15 of the 41 Maryland stations used on this site (37%). Catonsville, 6 miles northwest, has its own station (Md Sci Ctr Baltimore, MD): 44.0 inches a year, 1.0 less than here, and a July average high of 90°F against 89°F.

Water temperature at the NOAA tide station Baltimore, MD, 6 miles northeast, averaged 83°F in July and 40°F in February over 2021–2025. It averaged 80°F or warmer from July to August. Sea level at the Baltimore tide gauge, 6 miles from Linthicum, has risen 1.30 ± 0.02 inches per decade from 1902 to 2025, NOAA's linear trend; at that pace it is 13.0 inches in a hundred years. That is faster than at 77 of the 144 U.S. gauges with a NOAA trend.

Since 1996, the National Weather Service has logged 790 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Linthicum: 429 thunderstorm wind reports, 220 flash floods, 135 floods and 6 lightning strikes. They killed 5 people and injured 11, and the NWS estimated $52.3 million in property and crop damage. The strongest thunderstorm gust on record here was 81 mph, on June 22, 2010. July has had the most flash floods, 68 of 220. Of the 239 Maryland cities on this site with a flash flood on record, 223 have had fewer than Linthicum.

Flood insurance policyholders in Linthicum's ZIP code 21090 have filed 28 claims with the National Flood Insurance Program since 1978, and were paid $742,000 for buildings and contents, in the dollars of each year. 39% 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, 50 have fewer than Linthicum.