The recent hot weather has led to a 2.7% drop in fourth-quarter sales at confectionery retailer Thorntons.

Overall sales fell to £27.9m in the 10 weeks to 27 June, with own-store sales down 0.9% to £18.5m. Meanwhile, franchise sales were down 25.3% to £1.4m following the collapse of card retailer Birthdays, where Thorntons had a number of concessions.

But overall sales for the second half of the year were up 2.2%, with own-store sales down just 0.9%.

Commercial sales rose 24% to £7.2m and by 3.1% during the fourth quarter.

“This result has been achieved despite experiencing some decline in the fourth quarter – historically our smallest, representing only 13% of annual sales,” said chief executive Mike Davies.

Davies said full-year pre-tax profits would be marginally ahead of market expectations of £5.4m.