Rosemary, if your low temps are usually 32-ish, and you rarely get into the 20s, early pruning won't make any difference. Jeri, I am quite familiar with inland temps being hotter and colder, Pasadena being a great example, but based on Rosemary's description, I'd say she has nothing to worry about. Even in Jeri and my coastal climates, we have friends who are "just over the hill" with more extreme temps. I always advise my friend on the San Marcos Pass to prune in February. But it just doesn't get cold enough to be concerned about new rose growth even if we/they get a frost.
