And then we want to figure out in which way "Temperature" is affecting "Ozone" values.

As following left chart is a comparison of Ozone and Temperature from May to September. We can see an overall positive trend between the two: when there is a rise of temperature there is a rise of Ozone and vice versa.

The right chart shows a scatter plot of Ozone vs temperature. The points are colored by month. We can see overall there is this positive relation. If we zoom in to the chart, monthly details can be learned.