List of Texas hurricanes (1950–1979)  From 1950 to 1979, at least 34 tropical or subtropical cyclones affected the U.S. state of Texas. According to David Roth of the Hydrometeorological Prediction Center, a tropical cyclone makes landfall along the coastline about three times every four years, and on any 50 mi (85 km) segment of the coastline a hurricane makes landfall about once every six years. During this period, the most active month for storms affecting Texas is September, with twelve total storms, while no recorded storms have affected Texas during the months of November through May. While the most intense storms in terms of barometric pressure are both Hurricane Carla in 1961 and Hurricane Beulah in 1967, Carla caused the most fatalities and damages, with $325 million in damages and 46 deaths. The first storm to impact the state during the period was Tropical Storm How in October 1950, with the latest being Tropical Depression Twenty in September 1979. In terms of wind speed, Hurricane Carla is the strongest storm to affect the state, producing maximum sustained winds equivalent to status on the Saffir–Simpson Hurricane Scale. In the 1950s, five tropical cyclones made landfall on Texas as hurricanes. Starting in 1955, hurricanes that caused substantial damage to any country could have their name retired from the list of names for the Atlantic basin. Hurricane Audrey, the most destructive Texas hurricane during the 1950s, was the first hurricane to impact Texas to have its name retired. While the 1960s only featured six tropical cyclones making landfall on Texas, Hurricane Carla and Hurricane Beulah, both destructive Category 5s, made landfall as Category 4 hurricanes during the decade. Both hurricanes were subsequently retired. In the 1970s, five hurricanes affected Texas. Hurricane Celia made landfall as a major hurricane in 1970, causing $1.8 billion in damages. The following is a list of hurricanes, tropical storms, and tropical depressions with known deaths in the state.