Chesapeake Bay Coastal Bays Rivers and Streams Watersheds
Maryland Department of Natural Resources
Fixed Station Monthly Monitoring
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Middle Potomac River - Little Falls (POT1184)CORE/Potomac - (POT1184)

Map Showing the Location of POT1184

Location:
Little Falls on the Potomac River, Just North of Washington, D.C.

Coordinates (NAD83):
Latitude: 38.9482º
Longitude: -77.1272º
Latitude: 38.9482º
Longitude: -77.1273º

Description:
This station is a shallow, non-tidal, fresh water site where water clarity and salinity are not measured.PO09;Potomac River Gage station above Little Falls Dam; Characterizes free-flowing freshwater

Current Parameter: Water Temperature

Choose Other Parameters:
Dissolved
Oxygen 		Water
Temperature 		Salinity pH Water
Clarity


The yellow shaded area represents the range of monthly mean values that have occurred from 1986 to 2012. The blue line shows the monthly mean values for each month over that same time period. The red line shows what the current years conditions are and how they compare to the range and the average values we've seen.

To convert temperature to Fahrenheit, use the conversion tool below.

2013 Surface Water Temperature
 Middle Potomac River / Little Falls (POT1184) CORE/Potomac / (POT1184)

Legend

Range 1986 to 2012 2013 Mean

Surface Water Temperature (°F)
Middle Potomac River / Little Falls (POT1184)CORE/Potomac / (POT1184)
Month Minimum Mean Maximum 2012 2013
January 31.82 38.50 50.00 35.24 39.92
February 32.36 39.51 50.00 48.56 37.40
March 32.00 45.89 57.20 57.20 41.54
April 50.00 57.76 68.72 60.98 46.76
May 58.28 66.24 76.64 66.20 62.60
June 64.40 75.00 82.40 76.46  
July 76.64 81.37 88.70 84.74  
August 75.20 81.00 85.46 83.66  
September 65.30 74.05 82.40 82.40  
October 59.00 64.57 76.10 74.30  
November 42.62 52.11 60.44 47.66  
December 33.62 43.91 55.58 50.90  

NOTE: Results displayed are provisional and have not undergone full Quality Assurance procedures. Although Maryland DNR believes the data presented here are correct, we cannot guarantee their accuracy at this time.

Temperature Conversion       
Fahrenheit
Celsius		 =        
Enter a reading on the left side and select the units of the original value. The converted temperature will be displayed on the right.
Choose Other Parameters:
Dissolved
Oxygen 		Water
Temperature 		Salinity pH Water
Clarity

Return to the MapReturn to the Station Map

Additional water quality data, including nutrient data, is currently available through the Chesapeake Bay Program Data Hub.

Contact Mark Trice of MD DNR's Resource Assessment Service at (410) 260-8630 or by email at mtrice@dnr.state.md.us.

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