In preparation for winter I'm looking at down parkas to use for when snowshoeing/climbing this winter. The past couple years I've been out due to IT band issues, but I now have them resolved thanks to a great PT. I can't remember the typical winter temps on San J which I need to know so I know how much insulation I need for the new jacket. I seem to remember it usually not getting much colder than the teens to twenties, but thought I'd check with the veterans.
I've been looking at the Montbell Permafrost with 9 oz. of 800+ fill down and the Bergans of Norway Sastrugi with 12 oz. of 800+ fill down. The Sastrugi is actually a bit less expensive but I'm wondering if it would be overkill in warmth for the SoCal winters.
