WordPress at a glance
filter is not described

months_dropdown_results filter-hook . WP 3.7.0

Filters the 'Months' drop-down results.

Usage

add_filter( 'months_dropdown_results', 'filter_function_name_9416', 10, 2 );
function filter_function_name_9416( $months, $post_type ){
	// filter...

	return $months;
}
$months(object)
The months drop-down query results.
$post_type(string)
The post type.

Where the hook is called

WP_List_Table::months_dropdown()
wp-admin/includes/class-wp-list-table.php 547
$months = apply_filters( 'months_dropdown_results', $months, $post_type );

Where the hook is used (in WP core)

Does not used.