Cold as can be outside this a.m. so looks like another house bound day. Spent a little time researching your rose bloom problem. I don't believe the temperature or lack of dormancy is the problem. I have a blaze climber and a pink climber of some variety, and neither one of them really appears to go fully dormant during the winter. They keep some active leaves, and seem to grow a bit during warm spells and slow down or stop during cold spells. From what I read, the two biggest possibilities that jump out are excess fertilizer or perhaps the soil is outside the necessary pH range. As with many flowering plants, too much fertilizer can stimulate top growth at the expense of flowering.
Also I read a piece about roses sometimes, for no understood reason, shooting up non flowering canes called "blind shoots". According to the article, they are generally spindly in appearance. The author suggests pruning those back to encourage new lateral growth.
Finally, one site desribed described silver moon as "with good foliage but a little shy in flowering" but did not elaborate on the comment.
Couldn't find anything relating dormancy issues to blooming and couldn't find anything that seemed to necessarily apply to your situation.
Here is a decent FAQ piece concerning rose bloom issues.