Angola
semiarid in south and along coast to Luanda; north has cool,
dry season (May to October) and hot, rainy season (November to April)
Anguilla
tropical; moderated by northeast trade winds
Antarctica
severe low temperatures vary with latitude, elevation,
and distance from the ocean; East Antarctica is colder than West
Antarctica because of its higher elevation; Antarctic Peninsula has
the most moderate climate; higher temperatures occur in January
along the coast and average slightly below freezing
Antigua and Barbuda
tropical; little seasonal temperature variation
Arctic Ocean
polar climate characterized by persistent cold and
relatively narrow annual temperature ranges; winters characterized
by continuous darkness, cold and stable weather conditions, and
clear skies; summers characterized by continuous daylight, damp and
foggy weather, and weak cyclones with rain or snow
Argentina
mostly temperate; arid in southeast; subantarctic in
southwest
Armenia
highland continental, hot summers, cold winters
Aruba
tropical marine; little seasonal temperature variation
Ashmore and Cartier Islands
tropical
Atlantic Ocean
tropical cyclones (hurricanes) develop off the coast
of Africa near Cape Verde and move westward into the Caribbean Sea;
hurricanes can occur from May to December, but are most frequent
from August to November