Compare Annual Rainfall
Orrorroo
Adelaide
Gladstone
Bruce
750ml
500ml
250ml
0ml

This graph has been created with figures available from the Bureau of Meteorology, using Google Charts.

Orroroo is just outside Goyder's Line and Bruce is a lot further north
Where the rainfall records are incomplete for even one day the entire year's rainfall figures are null. There are, therefore, gaps in the recent graph though the overall trend can still be seen.