Earth climate regions

tropical wet

Always hot and humid with heavy rainfall {at least 6 centimeters per month} all year round

Temperature always 18C or above

tropical wet-and-dry

Always hot; alternating wet and dry seasons; heavy rainfall in the wet season

Semiarid

dry but receives about 25 to 20 centimeters of precipitation per year

Occurs wherever potential evaporation is greater than precipitation; may be hot or cold

Arid

Desert, with little precipitation, usually less than 25 centimeters per year

mediterranean

Warm dry summers and rainy winters

Humid subtropical

Hot Summers and cold winters

Marine west coast

Mild winters and cool summers, with moderate precipitation all year

Average 10C above in warmest month, between -3C and 18C in the coldest month

Humid continental

precipitation year round

hot summers and cold winters

3-10

Average temperature 10C or above in the warmest month -3C or in the coldest month

subartic

Short, cool summers and long, cold winters; light precipitation, mainly in summer

Tundra

Always cold with a short, cool summer ----- warmest temperature about 10C

Average temperature below 10C in the warmest month

Ice cap

Always cold Average, temperature at or below 0C

Generally cooler and wetter than nearby lowlands; temperature decreasing with altitude