Crappie spawning peaks at 50 to 56 degrees when the fish move from the deeper waters to the shallow flats (6 to 15 feet) in spring.  In colder temperatures they can be found in 15 to 30 feet of water, normally hiding in the depths of river channels or around deep timber and weed beds. However, crappie can be caught all year round in all temperatures. The key is to change the location and depth that you are targeting based on the temperature.