Retailers in July continued to bask in sunny weather as sales grew but they are remaining cautious, fearing storms could be on their way, according to latest figures. The British Retail Consortium-KPMG retail sales monitor for July showed growth in like-for-like sales of 6.1 per cent up from 5.6 per cent in June and total sales up to 8.4 per cent from 7.8 per cent.