side zip rain pants are preferable vs regular rain pants
side zip fleece pants are preferable vs long johns
side zip feature allows ease of on/off while keeping boots on.
fleece or wool long john top
waterproof mittens - not just gloves
silk liner gloves
full face/head balaclava
you can get all of this into a daypack for use up high.
the waterproof gear is not just for rain and sleet, but wind. If it is colder, it actually is easier without sleet or rain, but there is still wind.
if it is 20F and 20 mph wind you will need a lot, even if you are moving well, but especially as you tire. You should have enough gear to stay warm in case you sprain your ankle and have to sit or be rescued. Also take a mylar pocket emergency bivy sack.
You might have a beautiful sunny windless day, or not. Applies to any day of the year up there.
