None of Australia's states have a climate at is truly similar to that of northeast US. However, the state that comes closest is Tasmania.
There is no state directly north of South Australia. The Norhern Territory, which is a territory and not a state, borders South Australia to the north. To the northeast is Queensland.
Cape York Peninsula is found in Queensland, in Australia's northeast quadrant.
Australia's coolest climate is found in the Australian Alps, the high country of the Kosciuszko National Park. The state with the coolest climate overall is Tasmania, which has a cool temperate climate.
Tasmania is part of Australia. A similar climate can be found in the state of Victoria, Australia. The country of New Zealand has a similar climate to that of Tasmania, as both places are islands well in the south. The main difference is that, overall, New Zealand is colder than Tasmania. Tasmania's weather is also very similar to England, in some respects, as it has four distinct seasons with similar average temperatures. However, England does not experience the drastic changes of temperature that Tasmania can experience in summer, as evident in the severe bushfires which can ravage that state. Also, Tasmania's average rainfall is much lower than that of England.
The climate of Western Australia varies. Much of the state is desert, so much of it has a hot and dry climate. However, the northwestern corner of the state is particularly prone to summer cyclones, and experiences a subtropical climate for this reason. The southern corner is more temperate.
Similar to the state of Florida; humidity.
The town of Boomahnoomoonha is in the state of Victoria, in Australia. It's close to the border in the northeast, not very far from Yarrawonga.
Being a continent, Australia has a wide range of weather extremes which are usually spread across multiple countries. Australia's climate is heavily dependant both on location and the state of the El Nino and La Nina patterns. Australia has been known to go from severe drought to torrential flooding in a matter of months.
Queensland is the Austalian state with the nickname of "Sunshine State". This is because much the state has a mild and temperate climate all year around, and some of the most popular beaches in Australia.
With the exception of the island state of Tasmania, Southern Australia has a warm temperate climate; Tasmania's climate is cool temperate. The southern part of the mainland is hot and dry in summer, and marked by cold and wet winters.
The northeast is best described factually with the help of encyclopedias. Each state can be explained according to climate, population, income, etc. For lifestyle and anecdotal history the northeast can be described well through literature from the 1600's to the present day.
Obama's home state is Hawaii located southeast of the coast of Japan, southwest of the continental US and northeast of Australia in the Pacific Ocean.