no dry season and rainfall is abundant with every month receiving over of rain and the wettest month, November, receiving over of rain on average. Precipitation falls mostly during convective storms. Due to abundant rainfall, rainforests surrounds Puerto Iguazú. The hot season lasts for up to 6 months or more, with temperatures reaching between on most days, and dropping to at night. Thunderstorms with heavy rains bring relief when the heat becomes too intense. The cool season runs from late April to mid September, with daily highs reaching an average of and a low of in June. These averages are reached through an alternating weather pattern, with several days with northerly winds and temperatures of around or higher and warm nights over giving way, in a very sudden manner, to cool, rainy weather and temperatures between for a few days, then to dry, sunny weather and colder nights (around 5 °C, or 41F, and sometimes much lower) and pleasant days in the range, and a gradual increase in temperatures as winds rotate to the north again. Frost is rare but does occur on some winters, and temperatures within a few degrees of freezing occur every winter. The record low is , a surprisingly low value given the latitude, the vegetation and the low elevation of the area. Temperatures above have been recorded in the spring and summer. Economy The economy is centered around tourism, given that the city's many hotels provide the principal source of jobs for its inhabitants. Many international hotels have been and are being constructed along the banks of the Iguazú River. Other of the city's tourist attractions include Three Frontiers, where the Argentine, Paraguayan and Brazilian borders meet. Puerto Iguazú is home to an active community of artisans, the La Aripuca resort, the Museum of Images of the Jungle (a collection of woodcarvings), the Mbororé Museum, the Luis Honorio Rolón Municipal Nature Park, the Güira Oga Center for Bird Rehabilitation, the Hotel Esturión, the Iguazú Grand Hotel and Casino, the Amérian Portal del Iguazú, and, south of Puerto Iguazú, the Sheraton Iguazú Resort & Spa. The nearby Wanda Mines also attract gemstone and geode collectors. Operating since the 1950s, the mines are the site of some of Argentina's best agate, amethyst, quartz and topaz lodes. Transport The Tancredo Neves International Bridge links Puerto Iguazú with the Brazilian border town of Foz do Iguaçu, where the Argentine