IF date is within one month of today's date, return YES, otherwise, return NO

I'm trying to use a spreadsheet to determine if supply is close to expiration. I want to use IF to determine if the expiration date is within one month of today's date, but I'm having trouble formatting the IF formula. Here's what my spreadsheet looks like:

https://preview.redd.it/rrr0k2yv1scg1.png?width=1636&format=png&auto=webp&s=f642d41e37f2f9f2d163309283a04cda51dcc413