The United States mainland covers almost 9.5 million sq kms and is bounded in the north by Canada and in the south by Mexico. The mainland comprises 48 states and in addition are the separate states of Alaska to the north-west and Hawaii in the central Pacific. Continental USA can be divided into five main physical areas. East to west are: the Atlantic coastal plain, the Appalachian Mountains, the Interior Plain, the North American Cordillera and the Western Plateau (High Plains).

The climate varies. On the Pacific coast, polar conditions in northern Alaska give way to cool and warm temperate zones further south, with moderate rainfall and temperate desert in southern California. The mountain states (Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, Wyoming) exhibit very varied climatic conditions, determined by local mountain features. Winters in the north are very cold with considerable snowfall. The High Plains have a continental climate and experience summer dust storms and winter blizzards. The Atlantic coast is temperate maritime with temperatures varying according to latitude and heavy snowfall in the north is not unusual. The warmest months are July and August.

Pre-travel Preparation Will Help Protect Your Health While You Are Away

Pre-travel preparation will help keep you safe and healthy while you are away. Please consult the Travel Doctor-TMVC before you travel overseas. We will provide specific recommendations tailored to your itinerary. Our doctors will assess and advise you on your risks, and recommend appropriate vaccination and medication to minimise your risk of becoming seriously unwell on your trip.

Insect Avoidance

There are a number of viruses and illnesses that are contracted through insects such as fleas, ticks and flies. Mosquitoes however are the biggest culprit of spreading insect borne diseases. Ensure you a prepared and read up on our insect avoidance tips.

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