between 31F and 50F
between 51F and 70F
between 71F and 90F
greater than 90F
You might be interested in seeing a representation of the difference in temperture between the two months. The WorldWatcher software allows you to subtract the values of the first picture from those in the second and displays these differences as a map.
What more would you like to inviestigate about global temperature? For example, is there any correlation between annual average temperature and population?
The data are displayed using an equidistant rectangular projection. This means that a square degree is shown as the same size at the poles and equator, when its actual surface area is not the same. The result is that areas close to the poles appear to be larger than they are in relation to areas near the equator. Cartographers often use other projections to display regions of the earth in sizes that more faithfully represent their actual sizes. One of the most popular of these projections is the Mollweide projection which is suggestive of the spherical shape of the earth. WorldWatch gives you the option of this display; an example of this projection is given below and represesnts a different display of the same temperatue data in the previous diagram that compares temperature with population.
For a closer approximation to the representation of a spherical earth, this projection can be cut out and pasted together to make a 'globe".