User blog comment:Twilight fan12898/Happy 4th Birthday, Nessie!/@comment-1649841-20100907012530/@comment-1993814-20100908184508

Yes she was. Twilight is set in Spring 2005, New Moon September 2005 - Winter/Spring 2006, Eclipse Spring - Summer 2006, Breaking Dawn Summer+ 2006. The book was written in 2008, it's not set then. So Nessie was born on 10th September 2006. You can check her character page to see if I'm right.