World Climate Regions Tropical Region Temperate Region Artic Region Temperate Region Antartic Region
Polar Climate
Temperate Climate
Tropical Climate

World Climate

Have you ever wondered why one area of the world is a desert, another a grassland, and another a rainforest? Why are there different forests and deserts, and why are there different types of life in each area? The answer is climate.

Climate is the characteristic condition of the atmosphere near the earth's surface at a certain place on earth. It is the long-term weather of that area (at least 30 years). This includes the region's general pattern of weather conditions, seasons and weather extremes like hurricanes, droughts, or rainy periods. Two of the most important factors determining an area's climate are air temperature and precipitation.











Artic Region Climate
Temperate Region Climate
Tropical Region Climate
Antartic Region

The northern part of Alaska is the region known as the Arctic. It is about 80,000 square miles of tundra, and has a lot of rivers and ponds.

The weather in the winter is often well below 0šF. But the Arctic Ocean helps to keep things moderate along the coastal areas. In the summer the temperature is usually cool and is usually around 30što 40šF. The ground is permanently frozen and during the summer the soil thaws only a few inches. It is often windy and the combination of wind and cold drops the chill factor far below the real temperature. It is a hard climate for any animal to live in, but the Arctic is full of animals.This region is the home of the Inupiat Eskimos. These people live a subsistence life style by hunting and fishing. The largest Inupiat community in the region is Barrow. The government offices and other important services are also in Barrow. There are a lot of villages spread out all over the region.

Transportation in this region is mostly by airplane. In the winter time a lot of people travel by snowmachine and a few people mush dogs or cross country ski.

If you want to get from the Arctic to the Interior you can drive on the Dalton Highway. The road is 216 miles long. Part of this road is open to the public at certain times of the year. This road starts in Fairbanks.

Includes the regions between tropic and polar regions. The boundaries are the Tropic of Cancer and Tropic of Capricorn. It doesn't necessarily refer to climate.

The temperate zones are found in the areas between the polar and tropical climate zones. In a temperate zone, the summers are hot and winters are cold. Summer & winter are about equal in length.

Temperate deciduous forests get about 30 to 60 inches of precipitation, spread out during the year (mostly as rain and snow). Trees in these forests lose their leaves during the cold season and grow during the warm seasons.

Temperate rain forests do not get precipitation evenly spread out; they tend to have a long, wet rainy season and a relatively dry summer. Fog and low clouds provide moisture during the summers. Average precipitation is about 98 inches per year. These trees include evergreens, such as redwoods, spruce, and other conifers.

Tropical climate which is a non-arid climate having an average temperatures above 18°C. Rainforests, Savanna and Semi-arid are some of the example of tropical climates.

The equatorial belt experiences tropical climate which is usually marked with hot and humid weather conditions. Due to active vertical uplift or convection of air, precipitation is quite frequent in this region which is accompanied with thunderstorms almost every day. Sunshine along with excessive rainfall is the distinct feature of this climate which helps in the growth of luxuriant vegetation. Tropical climate are usually common in places like Amazon Basin in Brazil, the Congo Basin in West Africa and in Indonesia.

Due to evaporation and rain formation due to immense sunlight, the temperatures in this region usually ascend beyond 35°C. The night of tropic weather condition are usually covered with clouds and thereby with a fall in temperature to about 22°C. High precipitation is usually subjected when sun reaches overhead during the midday time.

The average temperature in Antarctica in summer is 20°F (-6.66°C), while the average temperature in winter is -30°F (-34.44°C). Note: Antarctic winter months are the reverse of those in the Northern Hemisphere.

The average precipitation in Antarctica is less than two inches (5 centimeters) per year.

Antarctica is the world's coldest, windiest, highest, and driest continent. Beneath the ice, some parts of Antarctic are 2,555 meters (8,380 feet) below sea level.

Midnight sun occurs throughout the Antarctic and Arctic at any latitude higher than 67.5° (three-quarters of the way from the Equator to the Poles). It is so intense that in the summer, Antarctica receives more solar energy per day than do lands near the Equator. Sunburn and snow-blindness (from intense glare) are serious risks.

Antarctica is losing ice cover due to global warming, but it is cold enough there that, unlike the Arctic, most of it likely won't melt.