San Francisco, where I've resided for four years now, doesn't really have seasons. You're perpetually in what feels like Spring, sometimes just on the tail-end of Winter, or just on the cusp of Summer. But never, ever Autumn.
Corporate places like Starbucks will roll out the Pumpkin Spice on everything, but it's never the same. You don't get that smell as leaves are turning. You don't get that heightened sense of crispiness in the air. You don't get that deep chill that begins to settle in over everything, including your bones. You definitely don't get tiny bits of frost on the grass or windows.
I grew up in the Northeast, and I've truly been missing Autumn.
(Also Winter. I totally miss snow, and yeah, they say drive 3 hours to Tahoe for snow. But that's not the same as waking up and finding it outside your window one random morning...)