Hurricanes and Tornadoes That Hit Glen Burnie, MD

The nearest NOAA station with 1991–2020 climate normals is Baltimore Wash International Airport, MD, 4 miles west of Glen Burnie 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 34 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%). Dundalk, 9 miles northeast, 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, 7 miles north, 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, 7 miles from Glen Burnie, 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 668 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Glen Burnie: 413 thunderstorm wind reports, 153 flash floods, 98 floods and 4 lightning strikes. They killed 2 people and injured 29, and the NWS estimated $16.3 million in property and crop damage. The strongest thunderstorm gust on record here was 81 mph, on June 22, 2010. August has had the most flash floods, 54 of 153. Of the 239 Maryland cities on this site with a flash flood on record, 201 have had fewer than Glen Burnie.

Flood insurance policyholders in Glen Burnie's 2 ZIP codes have filed 93 claims with the National Flood Insurance Program since 1979, and were paid $748,000 for buildings and contents, in the dollars of each year. The most came from Hurricane Isabel in 2003: 17 claims (18% of all) and $296,000. 28% 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, 107 have fewer than Glen Burnie.