If both you and your wife made a permanent move to Florida in 2019, and you no longer have your home in California, then for tax purposes you are both now domiciled in Florida, and you are each a part-year resident of CA for 2019.
Your domicile is your main, primary home. You can have only one domicile at a time.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
