Simplify the following text for a Grade 7 native English-speaking person.
Original: The 2009 Pacific hurricane season was a very active event in the annual cycle of tropical cyclone formation , due to a moderate El NiÃ o , unlike the 2009 Atlantic hurricane season , which was relatively quiet . The season officially started on May 15 in the eastern Pacific , and on June 1 for the central Pacific , and officially ended on November 30 , 2009 .
Simplified: The 2009 Pacific hurricane season started on May 15 , 2009 and ended November 30 , 2009 .