def _build_params(dt):
    """Takes a date and builds the parameters needed to scrape the dgm website.

    :param dt: the `datetime` object
    :returns: the `params` that contain the needed api information
    """
    params = (('yr', dt.year),
              ('month', dt.month),
              ('dy', dt.day),
              ('cid', 'mc-0191cbfb6d82b4fdb92b8847a2046366'))
    return params