How to Choose a Sleeping Bag for Pacific Northwest Winter Backpacking
If you are use to camping in summer and the shoulder seasons and are wondering what type of sleeping bag you’ll need for winter use in the Cascade Mountains here in Washington State, here are some basic points to consider.
Picking the Temperature Rating
The first thing you need to do is to determine the temperature rating you need. Winters in the Pacific Northwest are mild compared to other regions this far north. One way to determine likely temperatures is to study the average temperatures at different elevations on major peaks throughout the Cascade range. For me, the best potential campsites will start around 3000 ft, but in most instances, I end up camping around 4500–7500ft. I’ve only camped twice at higher elevations (Camp Muir at 10,000ft and Mount Adams at 12,ooo ft). Here in Washington State, if you look at temperatures on peaks North and South, West and East, you find that temperatures tend to be colder on the Eastside, as well as further North.