John Lewis has delivered weekly sales up 9.7% as the cold weather drove a “strong seasonal uplift in trade”.

Sister grocer Waitrose also reported a strong week, up 10.6% due to an increase in customer transactions and items sold.

For the week ending October 23, John Lewis said fashion reacted the most to the cooler weather, up 14%. Home and entertainment continued at a steady up 8%.

The department store group also reported the start of Christmas shopping, with Christmas trees closing the week at up 80%.

It said customers were also kitting out for the winter, with sales of outerwear, hats, scarves and gloves all strong. A return to tradition saw sales of Barbour jackets more than double over last year.

Toys surpassed £1m sales a week earlier than last year.

This week John Lewis opened another Home store in Swindon.

Waitrose reported home baking had a good week, with cake mixes and baking mixes up 23% and 17% respectively.Shoppers also stocked up on kitchen and bakeware,  with sales up 20%.

The cold weather meant comfort food was on the agenda, with diced stewing beef reporting sales up 500%.

And sales of Halloween spooky accessories were up 53% in readiness for this weekend’s parties.

Overall, the John Lewis Partnership reported sales up 10.2% for the week.