100% first-year bonus depreciation for SUV above 6,000 pounds to be purchased in late November. Still aplicable for the tax year?

The lease for the current vehicle that I use mostly for business is up in late November, and I am exploring purchasing a used SUV over 6,000lbs to take advantage of the new 100% first year bonus depreciation. Would the deduction still be applicable even when the vehicle will only get a month of use before the end of the tax year? Would the usage be based just on the month of December in case it is not 100% business?