[kstewskis]

Here's a common sense answer to the issue: If you have to be outside naked for 3 hours in the mid day, would you rather it be a cloudy day?

Thanks for the link, but it doesn't change anything. You don't seem to understand that Arizona is not dry 100% of the time. The deadliest UV ray index readings come through here when our dewpoints reach in the 60 degree range.

As for your question, all it would do would be more comfortable while being out there under cloud cover, rather than in the sun. The damage would still be the same.

[hang 'em]

Compare AZ (9) and AL (5).

I've lived in both places. As far as the UV death rays go, AZ wins hands down!