Thunderstorm wind is the standout hazard at Flight 93 National Memorial, with 4 recorded high-wind events in the data period alongside one flood incident. Somerset County's open, elevated terrain offers little natural shelter when fast-moving storms roll through, and these systems can arrive with minimal warning during summer months.
Before heading out, download a weather radar app — such as RadarScope — and check it the morning of your visit; if afternoon storms are forecast, plan to arrive early and leave by midday. Keep a rain jacket and a change of clothes in the car rather than a daypack, since the memorial's open plaza provides no overhead cover. If you hear thunder, return to your vehicle immediately rather than waiting near the Wall of Names or the open field.
Top recorded hazards in Somerset County
County dataFrom NOAA Storm Events (2024). Counts of recorded incidents — not all occurred at this park.
- Thunderstorm Wind 4
- Flood 1
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About Flight 93 National Memorial
On Tuesday morning, September 11, 2001, the U.S. came under attack when four commercial airliners were hijacked and used to strike targets on the ground. Nearly 3,000 people tragically lost their lives. Because of the actions of the 40 passengers and crew aboard one of the planes, Flight 93, the attack on the U.S. Capitol was thwarted.
Weather
Fall-Winter Cooler weather starts in September with warm days and cool nights. The first snowfall of the season occurs by mid-October and extends through late March to mid-April. Daytime temperatures range in the mid-20s to 30s, with periodic warming in the 40s and 50s. The average annual snowfall is approximately 80 inches for Somerset County. Spring-Summer May is more predictable for warmer weather with daytime temperatures in the 60s and 70s. July and August are also mild with highs in the 80s-90s