Potomac River Filtration Plant, Montgomery County

• Monthly and Annual Normals
• Frequency Distribution of Departures from the Normal Monthly Precipitation
• Frequency Distribution of Monthly Precipitation Totals
• Extreme Daily Precipitation Totals

• 1999 Monthly Data
• 2000 Monthly Data
• 2001 Monthly Data
• 2002 Monthly Data
• 2003 Monthly Data
• 2004 Monthly Data (precip. only)
• 2005 Monthly Data
• 2006 Monthly Data (precip. only)
• 2007 Monthly Data
• 2008 Monthly Data

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