They don't generally answer NPHC questions on this site, but i blog for
www.divineninelover.com and I'm sure we've answered that question there.
Generally speaking, your GPA meets most (but not every) organization's requirements, but please know that unless you're especially well-liked among the chapter, it's going to be very hard to put YOU on if there's somebody with a higher GPA and more activities.
"Grade risks" are a thing with NPHC orgs, too, so feel free to apply but be mindful your chances are better with higher grades.