Hi, mboothby, sorry about your jades!
(There's nothing more frustrating to me than having my plants get frost-bitten!
- I forgot about my 'wandering jew' the other night, and it's a goner!)

Anyhow, the answer to your question seems to be 'It depends.'

If they were only frost-bitten, they should spring back no problem
- minus a few leaves/branches, of course.

If they were entirely frozen, root to tip, I wouldn't expect them to survive.

I'd let mother nature continue her work on the plants, just to see
how much she wants you to remove. Eventually, when the live/dead
sections of the plant are discernible, you should prune.

I suggest waiting to prune to minimize the shock to the plant.

Josh

It's hard to say for sure, but I wouldn't consider it lost yet. A lot depends on the size of the plant, how cold it actually got, how wet it was at the time, and so forth. Give it a warm, bright spot inside and see what it does.

...and be frugal with the water until the damaged parts have callused over.

You might have to wait for spring or a little later to see any signs of returning life.

How cold? Chances are any frostbitten portions will dry up and fall off. Jades love cool sunny weather. Since you grow your Jade outdoors, has it started to flower? They are tough plants and it will bounce back. I usually don't even water mine in the winter months. It has suffered no ill effects on a 30F night just a couple days ago.

You don't say how much froze. This happens to my jade plant EVERY YEAR. I forget to bring it in and end up with several branches frozen/crinkly/brown/grey. I pop them off (they pop off well right wehere the dead part ends) and just sit it in the house. The jade plant is 10 years old and it is still going. Give it some time. I find it renews growth after every one of these little disasters.

Now, if the ENTIRE PLANT was frozen, then you might not be so lucky.