September 1st
Iron's Prophecy (The Iron Fey #4.5) by Julie Kagawa
Stormdancer (The Lotus War #1) by Jay Kristoff
September 4th
Outpost (Razordland #2) by Ann Aguirre
Sweet Shadows (Medusa Girls #2) by Terra Lynn Childs
Monstrous Beauty by Elizabeth Fama
Tiger's Destiny (The Tiger Saga #4) by Coleen Houck
Origin by Jessica Khoury
Carnival of Souls by Melissa Marr
Fathomless (Fairytale Retellings #3) by Jackson Pearce
Dead Is A Killer Tune (Dead Is #7) by Marlene Perez
34 Pieces of You by Carmen Rodrigues
September 5th
Witch Born (Witch Song #2) by Amber Argyle
September 8th
Redemption (Heart of Stone #1) by Veronique Launier
Silver (Bandia #1) by Talia Vance
September 11th
Toxic (Denazen #2) by Jus Accardo
Anything But Ordinary by Lara Avery
Fate Succumbs (Timber Wolves Trilogy #3) by Tammy Blackwell
Unspoken (They Lynburn Legacy #1) by Sarah Rees Brenna
Vessel by Sara Beth Durst
My Super Sweet Sixteenth Century (My Super Sweet Sixteenth Century #1) by Rachel Harris
Tilt by Ellen Jopkins
Hidden (Firelight #3) by Sophie JordanFan
g Girl by Helen Keeble
Person Effects by E.M. Kokie
Hanging By A Thread by Sophie Littlefield
Shadowfell (Shadowfell #1) by Juliet Marillier
September 13th
Nerve by Jeanne Ryan
September 15th
My Heart Be Damned (Damned #1) by Chanelle Gray
September 18th
Cursed by Jennifer L. Armentrout
The Diviners (Diviners #1) by Libba Bray
The Crown of Embers (Fire and Thorns #2) by Rae Carson
Incarnation by Emma Cornwall
The Dead Girls Detective Agency by Suzy Cox
Ceaseless (Existence Trilogy #3) by Abbie Glines
The Lucky Ones (Bright Young Things #3) by Anna Godbersen
Burn for Burn (Untitled Trilogy #1) by Jenny Han & Siobhan Vivian
Butter by Erin Jade Lange
Ten by Gretchen McNeil
The Raven Boys (Raven Cycle #1) by Gabrielle Zevin
What's Left of Me (The Hybrid Chronicles #1) by Kat Zhang
September 24th
Confessions of a Murder Suspect by James Patterson
September 25th
Shadows (Ashes Trilogy #2) by Ilsa J. Bick
Scorch (Croack #2) by Gina Damico
Covet (The Clean #2) by Melissa Darnell
A Fractured Light (A Beautiful Dark #2) by Jocelyn Davies
Wolf Pact (Wolf Pact #1) by Melissa de la Cruz
Dearly, BEloved (Gone with the Respiration #2) by Lia Habel
The Blessed (The Blessed #1) by Tonya Hurley
Alice in Zombieland (White Rabbit Chronicles #1) by Gena Showalter
Rapture (The Fallen Angels #4) by J.R. Ward
September 27th
Shallow (A Going Under Novel #2) by Georgia Cates
Falling to Ash (Moth #1) by Karen Mahoney
The Casual Vacany by J.K. Rowling
Here's a complete list of YA books coming out in September of 2012.