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 USGS Station 01645000
SENECA CREEK AT DAWSONVILLE, MD

POTOMAC RIVER BASIN

Latitude: 39^07'41"; Longitude: 77^20'13"
Hydrologic Unit Code: 02070008
Drainage area: 101 square miles.
Additional information is available about this station.
Use these links to retrieve Streamflow Hydrograph, or tab-separated ASCII file of monthly data.

Summary of Monthly Flows (1961-90)for Station 01645000

                                           MEDIAN   
                     25             75     CUMU-    
                   QUAR            QUAR-   LATIVE   
PERIOD      AVG.    ILE   MEDIAN   TILE    RUNOFF   
           (cfs)   (cfs)   (cfs)   (cfs)   (inch)   
-------------------------------------------------
OCT.	    73.1    30.6    42.9    65.4    0.49
NOV.	    83.2    43.9    69.4    93.5    1.27
DEC.	     108    61.3    82.4     136    2.27
OCT-DEC	    88.1    52.9    66.8     113
CALYEAR	     115    72.7    96.7     143

JAN.	     131    62.2     107     157    3.67
FEB.	     156     108     118     214    5.07
MAR.	     158     105     157     211    6.86
JAN-MAR	     148     115     133     171
OCT-MAR	     118    83.6     102     138

APR.	     154    96.2     136     190    8.71
MAY	     147    76.8     111     191    10.1
JUNE	     122    68.1    92.0     133    10.9
APR-JUN	     141    79.8     122     166

JULY	    78.5    45.0    67.6     102    12.0
AUG.	    63.7    36.6    50.6    72.3    12.7
SEP.	    98.6    29.6    46.0    75.2    13.5
JUL-SEP	    80.3    41.6    62.4    88.4
APR-SEP	     110    60.6   100.0     158

WATYEAR	     114    75.8     101     145

Extreme High and Low Monthly and Daily Average Flows for Station 01645000

                    SECOND     THIRD                             SECOND     THIRD                
        MON.  HI.  MON.  HI.  MON.  HI.  DAILY  HI.  MON.  LO.  MON.  LO.  MON.  LO.  DAILY  LO. 
       ----------- ---------- ---------- ---------- ---------- ---------- ---------- ----------  
        FLOW  YR.  FLOW  YR.  FLOW  YR.  FLOW   YR.  FLOW  YR.  FLOW  YR.  FLOW  YR.  FLOW   YR. 
PERIOD  (cfs)      (cfs)      (cfs)      (cfs)       (cfs)      (cfs)      (cfs)      (cfs)      
------ ----------- ---------- ---------- ---------- ---------- ---------- ---------- ----------
OCT.	479.    80 233.    72 230.    43 4910.   80 7.10    31 9.64    32 11.     42 1.90    31 
NOV.	238.    72 216.    53 180.    73 2110.   53 12.60   32 15.70   31 18.40   42 8.40    32 
DEC.	287.    73 280.    84 245.    49 2020.   78 20.60   32 26.20   66 30.50   31 10.     31 
JAN.	402.    79 397.    78 335.    76 5020.   78 30.20   66 34.60   31 35.20   42 15.     31 
FEB.	484.    79 307.    36 299.    71 4210.   79 26.70   31 51.70   42 55.40   47 20.     31 
MAR.	296.    53 284.    84 268.    79 2190.   84 44.30   31 67.90   81 67.90   69 25.     31 
APR.	397.    83 331.    73 325.    84 2060.   83 55.90   69 57.20   47 57.50   31 26.     31 
MAY	510.    89 486.    88 254.    83 5210.   89 30.30   31 36.30   55 37.40   63 20.     31 
JUNE	747.    72 281.    51 199.    89 9900.   72 35.30   86 40.30   32 40.70   56 11.     31 
JULY	273.    56 240.    72 203.    45 4780.   56 13.40   55 17.90   59 20.20   66 5.20    55 
AUG.	248.    71 217.    33 169.    37 2840.   33 8.35    32 11.50   57 12.10   66 3.20    32 
SEP.	566.    71 494.    75 474.    79 9000.   71 10.10   31 12.20   32 13.90   41 1.80    66
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