Apparel retailer Factory 2-U Stores Inc on Thursday posted a 16.6 per cent slide in May same-store sales as unseasonal weather hit sales of light clothing.

The San Diego-based operator of nearly 260 stores said total sales for the month plunged 14.6 per cent to $36.6 million from $42.8m in the year-ago period.

It added same-store sales for the 17 week period ended May 4 fell 13 per cent versus a 3.7 per cent slide last year, while year-to-date total sales fell nine per cent to $153.5m.