def convert_number_to_month(month_int):
    """
    Return a month as string given a month number
    :param month_int: int
    :return: str
    """

    months = ['January',
              'February',
              'March',
              'April',
              'May',
              'June',
              'July',
              'August',
              'September',
              'October',
              'November',
              'December']

    month_int -= 1
    if month_int < 0 or month_int > 11:
        return

    return months[month_int]