I think you got a chance. Getting hired is variable depending on what the PI is looking for (usually research experience) and how much effort you put into it.
When you apply, you put your GPA, class grades, res, and a cover letter on a database. PIs can search for potential students based on GPA, research interest, ugrad school. A ~3.6 is a solid place to be.
You're a lot more likely to get it if you take the initiative instead and email PIs around jan/feb.