It probably would work in limited situations. The daily temperature difference and amount of heat generated while hiking need to be considered.

In the airid west a 35 degree difference is faily normal - high of 60 and low of 25.

An outfit that will keep me warm highing at 30 degrees might only keep me warm around camp at 50.

That give an effective temperature difference of 55 degrees. Pants that are comfortable hiking during the heat of the day will not be enough to keep you warm at night.

In a coastal climate it might very well work.