UK retailers received a summer boost last month as sweltering temperatures spurred sales of clothing. The quantity of goods sold in stores and online rose 0.6 percent, more than economists forecast, following a 1.1 percent decline in May. Britons saw the hottest June temperatures since 1976 last month, with some parts of England seeing the mercury climb well above 30 degrees Celsius (86 Fahrenheit). That boosted sales of new fashion lines, with clothing sales rising 0.4 percent. There was also evidence of spending on clothing linked to the festival of Eid as Muslims marked the end of the month-long Ramadan fast.