The Czech Republic's climate. The Czech Republic lies in a temperate climate zone with pleasantly mild summers and winters with only moderate amounts of precipitation. The average annual temperature ranges from 5.5C (42F ) to 10C (50F ), but temperatures are lower in the mountains.
Linear vs logarithmic scales. 1  Human hearing is better measured on a logarithmic scale than a linear scale. 2  On a linear scale, a change between two values is perceived on the basis of the difference between the values.  On a logarithmic scale, a change between two values is perceived on the basis of the ratio of the two values.
Excel defaults to a linear scale for graphs, but you can easily change it to logarithmic to suit wide data ranges or logarithmic phenomena. The Chart Wizard produces graphs with linear scales. If you want a log scale, you can change it after creating it.