<P> The highest temperature officially registered in Brazil was 44.7 ° C (112.5 ° F) in Bom Jesus, Piauí state on 21 November 2005 . The lowest temperature officially recorded in Brazil was − 14 ° C (7 ° F) in Caçador, Santa Catarina state, on 11 June 1952 . However, the summit of Morro da Igreja, a mountain situated in the municipality of Urubici, also in Santa Catarina, recorded a temperature of − 17.8 ° C (0.0 ° F) on 30 June 1996 unofficially . </P> <P> The latitudinal position around the Tropic of Capricorn, the very uneven topography and disturbed circulation systems greatly influence the climatology of the Southeast and it is quite diverse in temperature . The annual medium temperature ranges from 20 ° C (68 ° F) as seen on the border between São Paulo and Paraná to 24 ° C (75 ° F) in the north of Minas Gerais, while in the elevated areas of the Serra do Espinhaço, Serra da Mantiqueira and Serra do Mar the average medium temperature can be below 18 ° C (64 ° F) due to the combined effect of the latitude with the frequency of the polar currents . </P> <P> In the summer, mainly in the month of January, the normal average temperatures range from 30 to 32 ° C (86 to 90 ° F) in the valleys of the rivers São Francisco and Jequitinhonha, in the Zona da Mata (Forest Zone) of Minas Gerais, in the coastal lowlands and to the west of the state of São Paulo . </P> <P> In the winter, the normal average temperatures range from 6 to 20 ° C (43 to 68 ° F) with minimum absolute from − 4 to 8 ° C (25 to 46 ° F), the lowest temperatures being at the highest elevations . Vast areas of Minas Gerais and São Paulo register occurrences of frosts, after the passage of the polar fronts . </P>

A climate zone that is hot all year with medium to heavy rain fall