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Scientific Investigations Report 2009–5123

Hydrology of the Johnson Creek Basin, Oregon

Figure - refer to figure caption for alternative text description

Figure 5. Annual, 3-year average, and cumulative departure from average precipitation at Portland Airport, Oregon, 1911–2006.

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For additional information contact:

Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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