noon
I am told that it sometimes drops thirty degrees in half an hour , but such occurrences are unusual . `` This is a good place to say that sudden changes in the temperature are very common in Australia , and that the change from midday to midnight is far greater than any to which we are accustomed in the United States . When we have a change of twenty or thirty degrees in a single day we regard it as unusual . What would you say to one hundred and ten degrees at noon and fifty degrees at midnight ? This is quite common in the interior of Australia and not at all infrequent on the coast . `` The thermometer runs very high in this country , and it is not at all rare for it to indicate one hundred and twenty-five or one hundred and thirty degrees Fahrenheit . One traveler has a record of one hundred and thirty-nine degrees in the shade and one hundred and seventy-two in the sun .