Lease Renewal/Month to Month Leases

My lease is up at the end of July and my landlord is unwilling to sign a month to month lease and has offered only a 1 year lease. If I don't tell the landlord that I want to renew for 1 year and assuming the landlord doesn't push me for an answer (they seem fairly disorganized), I am under the impression that the lease defaults to a month to lease. Is that correct? If so, how is the rate determined? I'm hoping the landlord will wake up at the end of July and realize I haven't said yes/no to the renewal and will accept the month to month lease for at least August (I only need the place for a couples of months).