1983–84 Australian region cyclone season
The 1983–84 Australian region cyclone season was the most active season on record, with a total of 22 tropical lows, 20 tropical cyclones and 12 severe tropical cyclones. It officially started on 1 November 1983, and officially ended on 30 April 1984.
Source: Wikipedia — 1983–84 Australian region cyclone season (CC BY-SA 4.0)