First storm formed Last storm dissipated Strongest storm Total depressions Total storms Hurricanes Major hurricanes Total damages Total fatalities The 2017 Pacific hurricane season was an average season in the pacific ocean basin with 19 tropical storms forming, 9 becoming hurricanes, and 4 becoming major hurricanes. The 2017 season was less active than the 2015, and 2016 seasons, partially due to a La Nina forming in the Atlantic effecting formation in the Pacific.