May 15th thru dec 31 for squirrels. ...and whenever rabbit season begins and ends. Any other time is illegal.
With that said, best time is fall for squirrels and anytime it snows for rabbits...
I believe that is may 15- Jan 31. Rabbit is Oct 1-Mar 15 for cotton tails and swamp rabbits.
Read them carefully, there's a 1001 ways to get the Oklahoma trapping regs wrong
Edit: I say this jokingly of course, when compared to other states and our surrounding states, our trapping regs look like they were created by PETA
This is pretty true. And as long as we are speaking legalities, trapping season is Dec 1st- Feb 28th. Seems like there are plenty of people trying to get the laws changed in Oklahoma in regards to conibears. I hope they do one day soon. It is hell trying to trap beaver in a foot hold.