Many of the wineries and attractions stay open all year, so there's truly never a bad time to visit Walla Walla. Walla Walla Brewfest takes place each February, their Spring Release is in early May, and the Walla Walla Balloon Stampede is in October. The area tends to stay unseasonably warm until November when you might find yourself tasting surrounded by a soft blanket of snow. However, most locals will agree there's nothing quite like the Walla Walla Valley in early autumn.