The circle separates the portion of Earth experiencing daylight from that experiencing darkness (night). While a little over one half of Earth is illuminated at any point in time (with exceptions during eclipses), the terminator path varies by time of day due to Earth’s rotation on its axis.

What percent of the earth’s surface is always lit by the sun? Answer: 0%. The moon casts a shadow sometimes, so it’s not 50%.

50%

That makes one day and one night. At any moment, half of the world is in daytime and half is in nighttime. The world is like a ball. We call the top half the Northern hemisphere and the bottom half the Southern hemisphere.

Yuma

Yakutsk has gained attention as potentially the coldest city in the world, but is worth a visit more for the great natural beauty of its surrounding countryside, unique cryogenic museums, and just for the spirit of adventure in the most remote lands of the world.

The residents of Yakutsk, Siberia are experts at surviving harsh winters. Yakutsk has all the features of any other mid-sized city. The 270,000 people who live there have access to movie theaters, restaurants, and a public transportation system that functions year-round.

Yakutsk, its capital, is one of the coldest big cities on earth – so cold it’s entirely built on permafrost. Most of its buildings are on pylons or stilts, made of wood or concrete, so they won’t melt the permafrost. It came into being in 1632, when the Yenesei Cossacks built a stockade here on the great Lena River.

These 30 Places Have the Worst Weather in America

• Buffalo, New York. 24/31.
• Portland, Oregon. 25/31.
• Tampa, Florida. 26/31.
• Jacksonville, Florida. 27/31.
• Houston, Texas. 28/31.
• Orlando, Florida. 29/31.
• Los Angeles, California. 30/31.
• Lubbock, Texas. 31/31.

Florida

Coldest States in America