Do you have a soft top?
We have a ton of sunny days here, but it does occasionally rain and sometimes gets cold (20's n 30's during "winter" (usually worse for about 2 weeks in January / February)). So I'd recommend at least some coverage.
That said, I've heard that with the amount of sun and heat we get, you should expect to replace your soft top about once every 5-6 years or so. To wit, I've had my '03 for 10 years (next month to be exact) and replaced the top once. However the replacement was needed due to a tree that jumped out and bit me when out on a trail.
If anything, welcome to SA