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In the tropics the average annual temperature is usually at least 25 °C (77 °F) with little temperature variation among months. By contrast most of the Peruvian coastal desert has average annual temperatures of less than 20 °C (68 °F) and with temperatures falling to or near 10 °C (50 °F) during the Southern Hemisphere's winter.
The hottest temperature ever measured at the Boiling River was a hot spring at 99.1°C (210 °F). The hottest average river temperature ever recorded was nearly 95°C (203° F). The name "Shanay-timpishka" means 'boiled by the heat of the sun'—from "shanay" (heat of the sun) and "timpu" (the verb, "to boil"), though the source of the heat is ...
Borneo, with the typical vegetation of tropical forests. Amazon rainforest, Manaus, Brazil. Tropical rainforests have a type of tropical climate (at least 18 C or 64.4 F in their coldest month) in which there is no dry season—all months have an average precipitation value of at least 60 mm (2.4 in).
Amazon River rain forest in Peru. Tropical rainforests are hot and wet. Mean monthly temperatures exceed 18 °C (64 °F) during all months of the year. [4] Average annual rainfall is no less than 1,680 mm (66 in) and can exceed 10 m (390 in) although it typically lies between 1,750 mm (69 in) and 3,000 mm (120 in). [5]
Amazon rainforest in Colombia Aerial view of the Amazon rainforest, near Manaus. The rainforest likely formed during the Eocene era (from 56 million years to 33.9 million years ago). It appeared following a global reduction of tropical temperatures when the Atlantic Ocean had widened sufficiently to provide a warm, moist climate to the Amazon ...
The Köppen climate classification is the most widely used climate classification system. [2] It defines a tropical climate as a region where the mean temperature of the coldest month is greater than or equal to 18 °C (64 °F) and does not fit into the criteria for B-group climates, classifying them as an A-group (tropical climate group). [3]
The rainforest town of Cruzeiro do Sul has recorded temperatures below 2.5 °C (36.5 °F) twice. [7] The hottest part of Brazil is the northeast, where temperatures of more than 38 °C (100 °F) are frequently recorded during the dry season between May and November.
Highest dew point temperature: A dew point of 35 °C (95 °F) — while the temperature was 42 °C (108 °F) — was observed at Dhahran, Saudi Arabia, at 3:00 p.m. on 8 July 2003. [ 199 ] Highest heat index : In the observation above at Dhahran, Saudi Arabia, the heat index ("feels like" temperature) was 81.1 °C (178.0 °F).