 By region, three cyclones developed over the Perth TCWC, three formed in the Darwin TCWC, and just one originated over the Brisbane area.Thus, seven cyclones developed in the Australian region – defined as the southern hemisphere between 80°E and 160°E – until Météo-France's Réunion area of responsibility and BOM adjusted the boundary eastward to 90°E in 1985.This was slightly below the 1952–53 to 1970–71 average of eight per season.