1 Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components.  A chemical substance is composed of one type of atom or molecule.
Precipitation Totals in February, in. Precipitation total in February for Machu Picchu is 3.7 in. It makes february the most rainy month of the year. Wind Speed in February, mph. The average wind speed in February is 6.0 mph. This value is relatively stable throughout the year. Average Sunny Hours Per Day.
This is particularly relevant during the months of January and February when the rainfall is at its heaviest. There are two main areas where problems frequently occur: 1) on the trains to Machu Picchu, 2) domestic flights in and out of Cusco (see below for more information).