The most significant storm of the season was Hurricane Agnes, which at the time was the costliest United States hurricane, until Frederic in 1979. After brushing the western tip of Cuba, the hurricane made landfall on the Florida Panhandle. It caused at least $2.1 billion (1972 USD) in damage and 137 fatalities, mostly from inland flooding in Pennsylvania and New York. The strongest hurricane of the season was Betty, which reached peak winds of 105 mph (165 km/h) while west of the Azores. Tropical Storm Carrie passed just offshore of Massachusetts, causing heavy rainfall and resulting in four fatalities, but leaving only $1.78 million in damage.