1972 - June 30 - The entire state of Pennsylvania was declared a disaster area as a result of the catastrophic flooding caused by Hurricane Agnes, which claimed 48 lives, and caused 2.1 billion dollars damage.

On June 30, 1972, Pennsylvania faced one of its most devastating natural disasters when Hurricane Agnes struck, leading to catastrophic flooding that engulfed the entire state. The hurricane, which had already wrought havoc across the Gulf Coast before moving northward, brought relentless rain that overwhelmed Pennsylvania's river systems. The Susquehanna River, swollen by days of heavy rainfall, breached its banks, inundating towns and cities along its path with unprecedented flooding.

The aftermath was staggering: 48 lives lost and widespread destruction estimated at 2.1 billion dollars. Homes were submerged, businesses destroyed, and infrastructure crippled as floodwaters submerged communities from Harrisburg to Wilkes-Barre. The disaster prompted a massive federal response, with President Richard Nixon declaring Pennsylvania a disaster area.