In Big Bear Lake, CA, we definitely have the 4 seasons. Winter especially needs special attention to your bait because the water is so cold. Unless you prepare, your bait will freeze and not float, then sink to the bottom. Also the Trout will have a hard time biting your bait even on a #18 treble hook. Winter conditions are when the water is at or below freezing.
The fishing is beyond belief the colder the water gets.
For more information on lake trout fishing bait click here