 Historical weather on this day, June 30, 1972. We talked on prior days about the catastrophic Hurricane Agnes that caused incredible flooding this month in 1972. And it was on this day in 1972 that the entire state of Pennsylvania was officially declared a disaster from the storm earlier in the month. 48 lives were lost in Pennsylvania alone, along with $2.1 billion in damage. Historical weather on this day is a production of Monsoon Mike's Weather.