Helped by the weather, some retailers are getting a jump-start on holiday sales.

Dollar sales in the first week of November 2017 were 2% higher than they were in the year-ago period, with small home appliances and apparel the primary growth drivers, according to the NPD Group. The top performing categories were apparel (driven by outerwear), men’s and boys’ apparel (sweats/active bottoms), home environment appliances (heaters) and stereo headphones.

“Holiday 2017 appears to be heating up a bit earlier than the…