Setting a Closing Month and Closing Quarter

Setting a Closing Month and Closing Quarter

I would like to add 2 fields to the Opportunities form.
Closing Month
Closing Quarter

I would like these to be automatically set based on the Closing Date.  So if Closing Date = 11/14/15, the Closing Month would = November, and Closing Quarter = Q415

I tried to use the getMonth field but it does not seem to be working.  I also want the field to return 'November', rather than '11'.  

Can someone help?