This is my outfit for spring snowcamping in the Sierra - nighttime temps usually in the mid-20's, occasionally the teens:
daytime - Terramar silkweight EC2 qwik-dri top and bottoms (when it's bright sun it can be very warm, so then I ski in just these), shorts (for the pockets mostly), shell pants I made from EPIC fabric. Depending on conditions, if it's cold and/or very windy, I might add an expedtion weight zip-t or my Marmaot Precip jacket. Since I'm skiing with a pack, I generate a lot of heat, so I've never gotten to the point where I'd wear the zip-t and the shell together while moving.
For camp and lunchtime, a homemade Polarguard hooded anorak. I guess similar to a Puffball jacket, but weighs less. For camp only, polargurad pants - never wear them during the day.
Lightweigh wicking balaclava, sun hat, double-layer fleece hat.
Powerstretch liner gloves, Orlon mittens my freind's mom knitted for me in 1972, and mitten shells.