Index: wp-admin/includes/class-wp-list-table.php
===================================================================
--- wp-admin/includes/class-wp-list-table.php	(revision 21789)
+++ wp-admin/includes/class-wp-list-table.php	(working copy)
@@ -362,11 +362,17 @@
 	 */
 	function months_dropdown( $post_type ) {
 		global $wpdb, $wp_locale;
+		
+		$extra_checks = "AND post_status != 'auto-draft'";
 
+		if ( ! isset( $_GET['post_status'] ) || ( isset( $_GET['post_status'] ) && 'trash' != $_GET['post_status'] ) )
+			$extra_checks .= " AND post_status != 'trash'";
+
 		$months = $wpdb->get_results( $wpdb->prepare( "
 			SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
 			FROM $wpdb->posts
-			WHERE post_type = %s
+			WHERE post_type = %s 
+			" . $extra_checks . "
 			ORDER BY post_date DESC
 		", $post_type ) );