
Certified GKH Gardening Expert
Many succulents can survive a couple of freezing nights. But taking extra precautions can include placing them in a protected area, such as in a greenhouse or garage, or covering them temporarily with fabric or landscape cloth or even an upside-down pot. If you have a deck or eaves where they might get some protection, it would help. Also, make sure they are planted in super well-draining soil, and that they are getting plenty of air circulation and light. This article may be helpful:
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-8/zone-8-succulents.htm