On July 14, 1931, a storm hit central Montgomery County, dropping so much rain that several local creeks flooded, causing $1,000,000 in damage according the Times-Herald (that’s not adjusted for inflation).
One of the hardest hit sections of the borough was Elmwood Park, where the miniature golf course was destroyed. At the zoo, two volunteers watched as the flood waters rose toward the cages. They called the assistant borough engineer, Samuel Hart, around 10pm. He ordered them to open the cages. The Times Herald reported that the white tail deer ran off, but that many of the animals could not escape the rushing water. The monkeys, bears, and opossum survived. Even more troubling perhaps, was the reported alligator sightings in flooded areas of the park (they were later recovered).
The Times-Herald's building flooded, but it still managed to put out an edition for July 15th. Several families were left homeless by the storm and sheltered at city hall.
Two days after the flood, Norristown had as much trouble with gawkers as it did with debris. Thousands came to view the flood damage, especially in Elmwood Park, as you can see in the photographs. Police had to be sent out to the direct traffic.