I don't know specifically about this light, but many if not most Great Lakes lighthouses closed down during the winter. No shipping when the lake is frozen.
I saw a ship 3-4 days ago just off US Steel's docks at Gary IN. On the southern tip of lake Michigan (just leaving or coming in, It was at night and couldn't tell what direction it was going)
Although I thought the satellite image was recent, this is recent, it was taken yesterday. It is the Joseph Block unloading at the same place as the ship in the satellite image and over on the left is the Indiana Harbor east lighthouse
Though I can't find anything specific about seasonal service at Cleveland West Breakwater, I did find this in "The Book" (Great Lakes Lighthouses Encyclopedia)
They took it as their solemn duty to get to their stations early in the season so their lights would be lit for the beginning of the shipping season, and they would stay at their station until freeze-up, sometimes having to walk miles across ice at the end of the season. Occasionally they were forced to winter over, and some did not survive.
I wonder what happens to shipping if there is a temporary freeze in the harbors?