def dailyLow (lowTemps, date):
    """Finds the low temperature for date in question.

    .. warning:
        Assumes date has been validated using dateValidation and that data
        exists for date in question using dataAvailable.

    :param list lowTemps: Low temperatures for given month
    :param date: Date (Month, day, year) to check for low temperatures
    :type date: list[str, str, str]
    :except IndexError: No data available for date in question
    :return: The low temperature for date
    :rtype: int or None
        """
    if date is not None:
        try:
            return lowTemps[int(date[1]) - 1]
        except IndexError:
            return None