Graph - Area Affected with Precipitation Extreme Events

This graphic shows the change in the area of the United States affected by increases in the proportion of total annual precipitation derived from extreme daily precipitation events (more than 2 inches). The x axis represents 20-year increments, starting from 1900 through 2000. The y axis shows percent area of the nation experiencing extreme precipitation events (e.g., storm) in 2 percent increments, starting from 6 percent to 14 percent area.