Past weather for Bunbury Western Australia Sept 09?

Today Wyndham in the north of Western Australia will see light rain showers during the day, with temperatures between 29°C (84°F) and 38°C (100°F). Thevenard in the east will see sunny intervals,...

Because it is the western part of Australia

WE can date plants and animals by carbon 14 or other methods and rocks by iridium dating or geologic studies so we know the "when" of the material. The weather in the past can then be determined by:...

Western Australia is Australia's largest state, occupying the western third of the continent.

Either, but the full version for clarity