The last observations made by the "Uruguay Meteorological Society" during the year 1891 have given the following results;
Atmospherical pressure, calculated in mm., reduced to 0, middle term, 760,572.
Temperature of the air, in the shade, centigrade degrees, middle term, 16,23; minimum, m. t. 12.77; maximum, m. t. 19.36.
Tension of the vapor, in mm., middle term, 10.98.
Relative humidity (saturation = 100), middle term, 77.29.
Inferior wind, prevailing direction N. N. E.; rapidity in meters by second, middle term, 3.81.
Rain, mm., total: 711.8.
Winter is so mild in this country that, in fact, the year may be divided into two seasons—the hot season, from November till April, and the cool season, from May till October.
Whatever may be the geographical situation of his own country the foreigner does not need any previous acclimation; when he comes to live in this Republic he does not feel any disorder in his health, owing to the mildness of the temperature.
The most ordinary winds are the N., N. E., E, and S. W. winds. This last one, called Pampero, is pure and vivifying and is rightly considered as the purifier of the Plate, and one of the principal causes of the wholesomeness which the country enjoys.