[JRTJH]

Depending on your route from Maryland to Arizona, you probably won't have any problems this time of the year. Just plan to head toward Atlanta then west and as long as you stay on I-20 or further south, you'll be OK traveling with a "wet trailer" as long as you run the furnace at night. If you're planning a route further north, then you may run into icy roads, problems with towing and even might find that you get "stuck in one spot" to wait out a winter storm. It's better to "hole up and wait" than to risk towing on ice and snow covered roads when you can.... Snow chains for trailer use is only a "mountain pass situation" for emergency towing. For most of us, if the weather gets that bad, we wait it out for a clear day..... Even if it means winterizing the trailer and spending a couple days in the local Motel 6, that's better than spinning out of control on an icy road......