Contour Lines: Contour lines are used to determine elevations and are lines on a map that are produced from connecting points of equal elevation (elevation refers to height in feet, or meters, above sea level). profile may be constructed quickly and accurately across any straight line on a map by following this procedure: a. Lay a strip of paper along a line across the area where the profile is to be constructed. b. Mark on the paper the exact place where each contour, stream and hill top crosses the profile line.
During may you will find snow at the North and South pole. It will also snow in high lying areas such as some mountains. Many people forget that while in May that while the Northern Hemisphere is experiencing spring (which in some places means there is still snow), the Southern Hemisphere is experiencing winter.
Annual Weather Summary: November 2016 to October 2017. Winter will be warmer than normal, with below-normal precipitation and near- to below-normal snowfall. The coldest periods will be in early to mid-January, from late January into early February, and in mid-February. The best chances for snow will be in late November, mid-February, and mid-March. April and May will be slightly cooler than normal, with rainfall below normal in the north and above normal in the south.