Complex sentence: Perth achieved a maximum temperature of just on 9 February, over 14 ° C below the monthly average, beating its previous record of set in 1914 and standing in stark contrast to the eastern states of Australia who were experiencing a major heatwave during the same time.
Split into simpler sentences: Perth achieved a maximum temperature of just on 9 February, over 14 ° C below the monthly average, beating its previous record of set in 1914. These temperatures were in stark contrast to the eastern states of Australia, which were experiencing a major heatwave during the same time.