As much as I like the heat here during the summer (not as hot or humid as the southeastern states), I like the challenge of riding in cool/cold weather in the fall to late-fall, to see how cold I can tolerate. I do, however, pack more because long pants are more suitable for daytime work now (although the office temperature is fine to wear short-sleeved shirts) and I have to have warmer gear for riding, especially during the morning commute (jacket+long-sleeved jersey and tights+shorts) that I have to pack for the warmer ride home (long-sleeved jersey and shorts).

I also have to ensure that my lights are working fine, that I have spare batteries and carry spare lights and I watch the forecast more carefully, especially if I think that the morning commute might be in fog or worse, with frost (and later snow) on the roads.