Consider the given graph. Analyze the intervals during the months from June to December and describe how that corresponds to the average rainfall.

the average rainfall increases

the average rainfall remains constant

the average rainfall increases then decreases

the average rainfall decreases

In the given graph, from June to December, the amount of rainfall steadily increases. This corresponds to the average rainfall increasing during these months. The graph shows a consistent upward trend in rainfall amounts during this period, indicating a higher average rainfall for each month. Therefore, the statement "the average rainfall increases" is the most accurate description of how the intervals during the months from June to December correspond to the average rainfall.