Heat Maps are good at demonstrating some data arrays which values can be divided into ranges. These Charts look like a table with cells colored due to the ranges of values they represent. Values can be of any type.
This sample consists of 4 charts: the first one unites first four rows, that display the temperature values (the highest, average and the lowest) in °F and in °C, the second chart stands for average precipitation amount during a year, measured in inches and in mm; the third chart gives the values of the average snowfall inches (and mm), and the last chart unites two last rows of the Heat Map table, which represent the average amount of precipitation and snowy days. The first four rows use the same color scale, the same as the last two ones. The title above the Heat Map gives the name of the city described (White Plains in NY). The legend is absent on the chart. Though, the Heat Map points are interactive, so hover a point to get the information about the parameters it represents. It is also possible to select the points if necessary.