def get_month_description(self):
        """Generates a description for only the MONTH portion of the expression

        Returns:
            The MONTH description

        """
        return self.get_segment_description(
            self._expression_parts[4],
            '',
            lambda s: datetime.date(datetime.date.today().year, int(s), 1).strftime("%B"),
            lambda s: _(", every {0} months").format(s),
            lambda s: _(", {0} through {1}"),
            lambda s: _(", only in {0}")
        )
Generates a description for only the MONTH portion of the expression

        Returns:
            The MONTH description