These dates, adopted by convention, historically describe the period in each year when most tropical cyclogenesis occurs in these regions of the Pacific.

As such, this season is often viewed as the start year for modern reliable tropical cyclone data in the Pacific Ocean.

This season also had a record 6 systems make landfall: Agatha, Bridget, Katrina, Lily, Olivia and Priscilla.

Later that day, satellite images showed increasing circulation and Tropical Storm Agatha developed shortly after.

A U.S. Air Force weather reconnaissance aircraft flew into Agatha and found an eye and strong bands.

Hurricane Bridget continued moving west-northwest along the west coast of Mexico and came within 35 to 45 mi (56 to 72 km) of Acapulco on June 17.

Hurricane Bridget's storm surge caused flooding in the bay and damaged waterfront and beach facilities.

An Air Force reconnaissance aircraft flew into Carlotta on July 4 and found a system with a well-defined eye and good outflow, but winds only supported a tropical storm.

By July 8, the system had sustained one-minute winds of 125 mph (201 km/h) and a minimum central pressure of 951 mbar (951 hPa; 28.1 inHg).

Denise reached a peak intensity of 140 mph (230 km/h), a Category 4 on the Saffir-Simpson Hurricane Scale early on July 9, but then started to weaken.

On July 13 the system was approaching the Hawaiian Islands, but a reconnaissance flight only found winds that were barely tropical storm strength.

The remnants of Denise moved south of the Hawaiian Islands, but still brought beneficial rains that caused some minor flooding.

On July 10, a U.S. Air Force weather reconnaissance plane found a weakening system and the next day the storm was a dissipating depression moving toward the west-southwest.

An area of enhanced shower activity and low pressure circulation developed a couple hundred miles off the coast of Mexico.

However, because of Francene's increasing size, the storm starting pulling in cool surface air which caused weakening.

Tropical Storm Hilary developed about 115 mi (185 km) west of Clipperton Island on July 26.

Hilary strengthened quickly into a hurricane by July 28 and a recon plane found surface winds of 90 mph (140 km/h) and noted a well-defined eye.

Katrina brushed Baja California Sur and made landfall in the Mexican state of Sonora as a tropical storm.

Rain from Katrina's remnants ruined crops, destroyed railroad trestles, and washed away three bridges.

Hurricane Nanette threatened southern Baja California but turned west before making landfall.

Olivia eventually strengthened into a Category 3 hurricane before recurving and making landfall in Baja California as a depression.

Priscilla destroyed roughly 36,000 acres of corn, tomatoes, peppers, bananas, and cotton, resulting in $3.12 million in losses.

It includes their name, duration, peak classification and intensities, areas affected, damage, and death totals.