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USGS Potomac River Streamflow

USGS 01646500 Potomac River near Washington, DC

Provisional data from the U.S. Geological Survey, in cooperation with the States of Maryland, Pennsylvania, and Virginia.

September 2006: Streamflow on the Potomac River in September was 5% above normal. The lowest flow was 2,730 cfs on September 1. The highest flow was 15,370 cfs on September 5.

Monthly Mean Daily Streamflow for the Potomac River at Washington, DC in cubic feet per second (cfs)

***** Preliminary Data Subject To Revision *****

 
Mean Daily
Average*
% of Average
High
Low
January
20,400
14,300
143%
34,500
1/5/06
13,000
1/13/06
February
15,400
17,700
87%
18,100
2/7/06
5,780
2/28/06
March
5,940
24,000
25%
8,270
3/1/06
4,620
3/31/06
April
10,700

20,700

52%
35,400
4/25/06
4,600
4/1/06
May
7,900
15,200
52%
13,290
5/18/06
2660
5/31/06
June
16,800
10,000
168%
50,000
6/29/06
1,540
6/22/06
July
7,960
5,560
143%
30,800
7/1/06
3,850
7/31/06
August
2,300
5,300
43%
3,570
8/1/06
1,670
8/27/06
September
5,880
5,600
105%
15,370
9/5/06
2,730
9/1/06
October
6,760
November
8,050
December
11,900

*Based on data from 1937-2005.

See the links below for additional streamflow information for the Potomac River near Washington, DC
Real-time streamflow
5-year hydrograph
Historical streamflow


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