If you live in a cold state, you may not want to take him. It's probably not worth it to take him out and risk getting him sick. If you want to show him off, dress him up for ppl to see as you hand out candy.
i have the same question, my baby is 9 months though :P :) i'd say why not?!
My babies not born yet, but where I live theres a bunch of inside trick or treating for younger kids. At the mall they have a mini trick or treat thing. I'd google around your area & see if there's something like that then you'd be able to show him off in daylight :)