New to chickens and BYC

We've wanted some backyard chickens for many years and were finally able to pick up our first chicks today! Two silkies, which I believe are buff, and two smooth sizzles, one black and one that might be white or maybe lavender? So cute I forgot to ask. We also have (human) kids and they are in love as well. The chicks seem fine so far but I'm still nervously checking them (a whole seven feet away in a clear tub!).

They're two weeks old. The temperature here gets chilly but not too bad, the lowest average being 45 degrees F for about two months (Dec/Jan). No snow, not too much rain, we do get a bit of wind but we have a decent 6 foot tall wooden fence around a smallish yard. I'm building a wooden coop that will stay next to our house, under a roof overhang of about 2 feet. Should I plan on letting the chickens out this winter when they'd otherwise be ready, or should I just keep them in our garage until it starts warming up? They would have room to run in there but no sunlight or grass.

Thanks for your help! Husband and I have learned a lot already from reading BYC in preparation. I'll try to get a good picture or two up tomorrow.

 

Thanks!
Sacramento area in CA. We come from heavy snow winters so yes, it is paradise! We can always drive to Tahoe if we miss the snow. Maybe in a few years I'll be ready for that, mind you not opening the windows or getting out of the car.

 

The kiddos are in bed so I was able to sneak some pictures!


Husband named this one Heisenberg. S/he is the loud chirper of the bunch and proudly pooped as soon as I set her down for a photo.


My son named this one Little. Has a nice little head poof happening.


This one had a dab of grow gel on her/his head. She's a bit bigger than the others. I named her Eddy (of AbFab fame).


Eddy again


This is Patsy of course. She's got more yellowy color than Eddy, not sure if it shows here.


Patsy again

ETA: Looking at these pictures together I'm thinking I could be wrong on all the colors, lol. Was corralling wiggly children during the chick conversation. It will be a pleasure to see what develops!