Too much Spam!

Hello.
I have a relatively new retail website, about 4 months old. I’m not a “code” person so I’m always reaching out for help. my problem – too much spam,.. I think,.. maybe I’m over reacting.
I’m getting 4 to 10 spams a day. My site has low traffic (6 to 20 new visitors a day)and it seems all that spam is is a bit much.
All the spam comes through the blog comment form, which doesn’t seem to be accessible through the dashboard. I have Askimet which isolates the spam, then I just delete them.
Is all this spam normal activity for the rest of you?

I have “cforms” plugin I use for “Contact Us” and “Return Request” in which both have captchas. But I do not know how, or even if I can, replace the standard comment form on the blog.

So,…
Is it normal, for a low volume site, to have that much spam?
Should I be concerned?
What are my options.

Thank you for you time,

Greg