The 1956 Pacific hurricane season ran through the summer and fall of 1956. Eleven tropical systems were observed this season.

Systems

Hurricane One

Hurricane One existed from May 18 to May 19.

Tropical Storm Two

Tropical Storm Two existed from May 30 to June 3.

Hurricane Three

Hurricane Three existed from June 9 to June 10.

Hurricane Four

On June 11, a small low pressure system was first identified around 300 mi south of the Gulf of Tehuantepec, producing sustained winds which neared 30 mph. By 12:00 UTC the next day, the system intensified into a hurricane with sustained winds of 75 kn, with nearby ship reports indicating that the storm was producing sustained gales. Moving west-northwestward slowly, on June 13, reports from the Portland Star indicated that the hurricane had deepened into a minimum pressure of 29.06 inHg and was producing gusts exceeding 115 mph. Never intensifying further than 75 kn, the hurricane tracked north-northwestwards prior to making landfall around 150 mi east-southeast of Manzanillo, in the state of Guerrero. Weakening rapidly, the hurricane was last noted on June 14. The hurricane produced 30 ft waves and caused heavy rainfall in Mexico.

Hurricane Five

Hurricane Five existed from July 9 to July 12.

Tropical Storm Six

Tropical Storm Six existed from July 14 to July 16.

Hurricane Seven

Hurricane Seven existed from August 22 to August 25.

Tropical Storm Eight

Tropical Storm Eight existed on September 3.

Hurricane Nine

Hurricane Nine existed from September 4 to September 6.

Hurricane Ten

Hurricane Ten existed from September 12 to September 17.

Tropical Storm Eleven

A tropical storm formed in mid-October.