Roses in November

I arose about a week and a half ago to find the rose bush in my back yard with two small blooms and a few in the bud stage. Is it common for roses to decide to bloom in November? Usually it's just for a few weeks in May/early June and then that's it.

The two small blooms are still there now, even though it's been colder than usual here in Tennessee during November. We've had a few nights when it's gotten down to 33-35 but so far no hard frosts.
This is the first time I've noticed this, even though I've only been at this location for three years.