Note: Certification of an interlocutory decision by a trial court allows an appellate court to review the decision and to answer a controlling question of law. Certification is often used in state courts as well as federal courts and, where available, allows a federal court to refer a question of state law to the state's highest court. Certification is also used to refer to a judge's order that allows a suit to be maintained as a class action.
1 The average temperature in Santiago in December is somewhat warm at 19.2 Â°C (66.56 Â°F).  Afternoons can be very hot with average high temperatures reaching 28 Â°C (82.4 Â°F).
Thus there is little difference in temperature from one season to the next in many regions. Average annual temperatures are 6Â° C (43Â° F) at Punta Arenas in the far south, 11Â° C (52Â° F) at Puerto Montt further north, 14Â° C (57Â° F) at Santiago, 16Â° C (61Â° F) at Antofagasta and 18Â° C (64Â° F) at Arica in Chile's far north.