This illustration shows an area chart with two areas painted yellow and green. The title of the chart says: "Temperature Monitoring (in Degrees C)." The horizontal axis contains numerical values from 1 to 31. The vertical axis contains the following values: 0, 2.5, 5.0, 7.5, 10.0., 12.5, 15.0, 17.5, 20.0, 22.5, 25.0, and 27.5. The chart legend indicates that the yellow area corresponds to April, and the green area corresponds to May.