QUESTION:
What would be the typical temperature range at the most suitable site of
colonization on Mars?

ANSWER from Bruce Jakosky on October 29, 1998:
I'm not sure that anybody knows the answer to this question, since even
the most basic parameters about colonization of Mars have not been
addressed.  My instinctive reaction, though, is that a site for
colonization will be chosen based on some requirement--such as being
near a source of water, perhaps being near the equator, or being near
some interesting geological feature--and then the engineers will deal
with whatever conditions they find at that site.