>>/38108/
> the width of four fingers
If each finger had 150+ km of width.
São Joaquim and nearby Urupema are the national capital of snowfall (TM) simply by having the highest combination of latitude and altitude. However the south's altitude is mediocre, it doesn't have peaks in the 2500-3000 m range like the southeast. The southeast's higher altitude allows it to receive rare snowfall in its highest cities but they, in turn, lack latitude. For instance, this weather station is at 2400 m on the Mantiqueira range which forms the northern border of the Paraíba valley. It does have once a decade snowfall but if it were moved to the south it'd come every year.
>>/38112/
On Rio de Janeiro.