def consistent_typical_range_stations(stations):
    """
    returns the stations that have consistent typical range data

    Inputs
    ------
    stations: list of MonitoringStation objects

    Returns
    ------
    a list of stations that have consistent typical range data
    """

    consistent_station_list = []
    for station in stations:
        if station.typical_range_consistent() == True:
            consistent_station_list.append(station)
    return consistent_station_list