Even though I technically have a car and a bike, I’ve pretty much been using the bike only since my gf uses the car for the kids every day.. My original reason for buying it was just to get to work and save some money on gas.. The thing is.. Once you start riding.. You don’t want to stop.. First it was just to work and back.. Then it was “Just gonna go for a lil drive”.. Then it was trips up into the hills behind the house.. Then it was 5 hour bike rides with a motorcycle club..
There’s nothing wrong with getting a bike for commuting.. Just don’t expect that to be all you do on it.. As for the weather.. I’m pretty much in the same boat as you out here in SoCal.. Though you get a bit more warm in the summer.. Some good gear and a waterproof sweat suit to throw on over your clothes when it rains and you’ll be good.. Make sure your gear is well vented for the summers..
If you have to.. Sell your truck and just get a cheap small used car to have for emergencies..
Dagger