Profesor known only for a semester as a reference?

So here's the issue, I need a third reference for a job but since I moved from a small town to go to University I am unable to contact any references I've known for a long time. So I am thinking of using a professor as a reference bur I've never had the same professor twice in any of my classes so I've really only known them for a few months, would they still be okay as a reference?