# Passa Quatro

Passa-Quatro is a municipality in the state of Minas Gerais in Brazil. The population is 16,393 (2020 est.) in an area of 277.22 km$^2$. It is part of the microregion of São Lourenço.

## History

The origin of the name comes from the explorations of the bandeirante Fernão Dias Paes Leme who was given instructions to pass over a river four times, thus "Passa Quatro". The first inhabitants settled the region in 1674. The region wasn't populated until the second half of the 19th century when it became a district in 1854. In 1884, the Minas-Rio railway was constructed by the English and spurred its development. Emperor Dom Pedro II elevated the town to a city in 1888.

## Geography

Mountains include the fourth tallest peak in Brazil, the Pedra da Mina (2,798 m) located within Serra Fina and the point of Serra da Mantiqueira where the boundary of São Paulo is located. The Pico dos Três Estados is another landmark located on the boundaries of São Paulo, Minas Gerais and Rio de Janeiro. There are dozens of other peaks over 2,000 m.
The city was declared a hydro-mineral spa in 1941 due to its various fountains of torio-radioactive waters, which are reputedly sought out for curing liver and kidney problems. The winter is dry and the summer mild with temperatures varying between 16 and 22 degrees Celsius. In winter they can drop to 0 degrees with strong frost. This rural area has views of four of the ten highest peaks in the country. Trout fishing is possible all year. A tourist train service (narrow gauge) was inaugurated in the beginning of 2004 between the cities of Passa Quatro and Manacá.
The municipality contains the 335 hectares (830 acres) Passa Quatro National Forest, created in 1968. The forest is controlled by IBAMA and has native forest, exotic species, lakes, and the Iporã waterfall.

### New Climber Point

Passa Quatro has a newer point of climber at Brazil, compared to Siurana: Gruta de Passa Quatro (Cave of Four Passes). There are a big negative and the local climbers are working to open the roads in this place. (The climbing point is in Passa Vinte, not in Passa Quarto)

### Climate

Climate data for Passa Quatro (1981–2010) :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Mean daily maximum °C (°F) | 27.8 (82.0) | 28.9 (84.0) | 28.1 (82.6) | 26.8 (80.2) | 24.2 (75.6) | 23.7 (74.7) | 23.7 (74.7) | 25.2 (77.4) | 25.9 (78.6) | 26.6 (79.9) | 27.2 (81.0) | 27.5 (81.5) | 26.3 (79.3) |
| Daily mean °C (°F) | 22.0 (71.6) | 22.1 (71.8) | 21.5 (70.7) | 19.7 (67.5) | 16.5 (61.7) | 14.7 (58.5) | 14.5 (58.1) | 15.9 (60.6) | 18.2 (64.8) | 20.0 (68.0) | 20.9 (69.6) | 21.5 (70.7) | 19.0 (66.2) |
| Mean daily minimum °C (°F) | 17.6 (63.7) | 17.2 (63.0) | 16.7 (62.1) | 14.3 (57.7) | 10.7 (51.3) | 8.4 (47.1) | 7.9 (46.2) | 8.7 (47.7) | 12.0 (53.6) | 14.7 (58.5) | 15.9 (60.6) | 17.0 (62.6) | 13.4 (56.1) |
| Average precipitation mm (inches) | 299.7 (11.80) | 194.1 (7.64) | 163.1 (6.42) | 65.5 (2.58) | 60.2 (2.37) | 35.1 (1.38) | 29.9 (1.18) | 17.2 (0.68) | 83.4 (3.28) | 151.8 (5.98) | 173.4 (6.83) | 284.9 (11.22) | 1,558.3 (61.35) |
| Average precipitation days (≥ 1.0 mm) | 18 | 14 | 13 | 6 | 5 | 4 | 3 | 2 | 7 | 11 | 13 | 17 | 113 |
| Average relative humidity (%) | 77.7 | 75.9 | 76.8 | 75.4 | 76.5 | 77.0 | 74.8 | 69.4 | 69.6 | 72.7 | 74.1 | 76.8 | 74.7 |
| Source: Instituto Nacional de Meteorologia ||||||||||||||