The season began on May 15, 1972, in the east Pacific, and on June 1, 1972, in the central Pacific. It ended on November 30, 1972. These dates conventionally delimit the period of time when tropical cyclones form in the east Pacific Ocean. This season had a below average number of storms. There were twenty tropical cyclones, four of which were in the central Pacific. Of those, four were tropical storms, eight were hurricanes, and four were major hurricanes that reached Category 3 or higher on the Saffir-Simpson Hurricane Scale. In the central Pacific, two tropical storms and two tropical depressions formed. One of the depressions and one of the storms crossed the International Date Line to become typhoons in the 1972 Pacific typhoon season.