When Does Dunkin Release Pumpkin Spice. The new dunkin' spiked pumpkin spice iced latte is the brand's first ever limited seasonal offering, joining the existing line of spiked iced coffees released in. The return of starbucks' beloved pumpkin spice latte signals the end of summer and the onset of fall festivities.
Beginning wednesday, august 17, thereās a whole lot of pumpkin spice brewing at dunkinā. Dunkin’ brought back its pumpkin spice signature latte, pumpkin swirl and fall menu items, as well as introduced dunkinā rewards details for august and september.