One of the most known one, which is already part of urban legend due to its strange characteristics, is "St. John's little summer". The people of Buenos Aires called it that since it always appears on and around midsummer (here the winter solstice), i.e. June 24th, which the Catholic Church considers to be John the Baptist's birthday. This rare phenomena, which lasts between three days to a week, temperatures will sometime reach 24ēC, and one can see people sunning in the plazas of the city in plain winter.
At the end of the cold season there is another curiosity: "the Santa Rosa storm", a cycle of rains and thunderstorms that mark the start of the Buenos Aires spring and which coincide with the festivity of this Saint, which falls on August 30th.
Yet another, even stranger case took place in the Buenos Aires winter of 1918, when the only snowstorm that the city has ever registered covered it in white.
