Too low.
In fact, my district in NJ couldn't even give a living wage. Yes it was over the minimum wage, but barely over. Some ladies were making $6.25/hour. After taxes, union dues, and medical taken out it was less than $4 an hour. If you had worked in the district and had seniority, the most you could ever make as an assistant was between $13-15/hour. That was the cap!
I did this for about three years and it was living hell. This is on paper an affluent district, but they treated the assistants like crap. I got spit on, yelled at, cursed at (in different languages no less), and treated like a second class citizen from the administration.
Other districts nearby pay assistants $9-12 an hour. Which obviously is better, but still isn't great.
You may be better off substituting for your local district. I was an assistant and I figured if I substitute 1.5 days per week I would make more than being an assistant for 25-30 hours per week. Lets see, 12-15 hours a week making more, of course, I'd do it. I have my first sub assignment this week.
In some districts, particulary mine, it didn't matter if you had a Bachelors or going into school for teaching.. they didn't give any differential for higher education. Subsequently, most of our assistants were elderly retired ladies, that were in the 50+ age bracket. This was a great job for them, but they didn't know how to handle students, use classroom management skills and such. These ladies had no idea how to use the computer and were treated like crap.
So basically, find another route.