OP, I know exactly what you are talking about... I'm in the valley...

For now you need arm and knee warmers, toe covers, a wind vest and base layer to go with your typical kit. I wear long finger gloves and add a windbreak cover when it starts getting closer to 10c. Replace the SS jersey with a long sleeve jersey when the temps dip a bit, say below 8C. Look into some full length tights, booties and jacket for when it's getting closer to 0c. You'll also need to beef up the gloves and have a proper head cover for the colder days and quite possibly a balaclava. Depends on how cold you wanna go.

The thing to remember is the cold weather gear lasts a while and it's important to dress appropriately for the conditions so you can actually enjoy them.

Shoot me a PM if you got any specific questions...