I've been living in Squamish for a few years now....the campground is too expensive for a long stay. The Mamquam logging road is where all the legends live during summer.
Except for on Sunday, it hasn't rained for months...everything is dry...I was climbing alpine rock in Feb and it was dry. It won't rain until October.
The cracks are easy here, it's like sport climbing. No need to ever tape. Bring as many cams as you can. Hit me up for a tick list if ya want...or I'll lend you a guide.