February is the month when Tucson hosts a huge trade show, the Gem Show, that brings in people from all over the world. It is a very interesting event....people rent out hotel rooms, suites and ballrooms to display gems and related items. Many of the booths etc are open to the public, but not all. It is very hard to find a hotel room or a rental car or restaurant reservation in Tucson during the Gem Show, and I believe the early weekends in Feb. are traditionally the busiest.