The 2017 Pacific hurricane season was a near average season, featuring eighteen named storms, nine hurricanes, and four major hurricanes, although, the season was significantly less active than the previous three seasons, and most of these storms were weak and short-lived. The season officially started on May 15 in the eastern Pacific, and on June 1 in the central Pacific; they both ended on November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the two basins. However, the formation of tropical cyclones is possible at any time of the year. This was demonstrated when the first storm, Tropical Storm Adrian, was named on May 10, and became the earliest-known tropical storm in the Eastern Pacific. The season saw near-average activity in terms of ACE, in stark contrast to the extremely active seasons in 2014, 2015, and 2016; for the first time since 2012, no tropical cyclones formed in the Central Pacific basin. However, for the third year in a row, the season featured above-average activity in July, with the ACE value being the fifth highest for the month.
The following names were used for named storms that formed in the northeastern Pacific Ocean during 2017. Retired names, if any, will be announced by the World Meteorological Organization during the 40th session of the Regional Association Hurricane Committee, which will take place in Martinique from April 9–13 in 2018. The names not retired from this list will be used again in the 2023 season. This same list was used in the 2011 season.
For storms that form in the Central Pacific Hurricane Center's area of responsibility, encompassing the area between 140 degrees west and the International Date Line, all names are used in a series of four rotating lists. The next four names that were slated for use in 2017 are shown below, however none of them were used.
This is a table of all the storms that formed in the 2017 Pacific hurricane season. It includes their duration, names, landfall(s), denoted in parentheses, damages, and death totals. Deaths in parentheses are additional and indirect (an example of an indirect death would be a traffic accident), but were still related to that storm. Damage and deaths include totals while the storm was extratropical, a wave, or a low, and all the damage figures are in 2017 USD.