Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean. Spanning over 9.9 million square kilometres, Canada is the second-largest country in the world, after Russia, and its common border with the United States is the longest land border in the world. Since 1925, Canada has claimed the portion of the Arctic between 60° and 141°W longitude, but this claim is not universally recognized.
Canada has more lakes than any other country, containing much of the world's fresh water. Average winter and summer high temperatures across Canada vary from region to region. Winters can be harsh in many parts of the country, particularly in the interior and Prairie provinces, which experience a continental climate, where daily average temperatures are near −15 °C (5 °F), but can drop below −40 °C (−40 °F) with severe wind chills.