Women's fashion chain AnnTaylor Stores Corp on Thursday posted a 5.2 per cent fall in May same-store sales as unseasonal colder weather had an adverse impact on sales of warm weather apparel. The operator of Ann Taylor and Ann Taylor Loft stores said in a statement that total sales in the four weeks to June 1 climbed 5.5 per cent to $115.3 million and margins improved thanks to solid sales of full-priced fashions.