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 USGS Station 03049500
ALLEGHENY RIVER AT NATRONA, PA

OHIO RIVER MAIN STEM

Latitude: 40^36'55"; Longitude: 79^43'07"
Hydrologic Unit Code: 05010009
Drainage area: 11,410 square miles, approximately.
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 03049500

                                           MEDIAN   
                     25             75     CUMU-    
                   QUAR            QUAR-   LATIVE   
PERIOD      AVG.    ILE   MEDIAN   TILE    RUNOFF   
           (cfs)   (cfs)   (cfs)   (cfs)   (inch)   
-------------------------------------------------
OCT.	   10462    4905    7583   20015    0.77
NOV.	   17836   11362   17175   22565    2.53
DEC.	   25780   17489   26956   32213    5.21
OCT-DEC	   18026   13283   17368   22630
CALYEAR	   19072   17116   19153   22368

JAN.	   21606   15228   20194   28891    7.69
FEB.	   27342   16666   27167   34405    10.5
MAR.	   38406   27583   36452   46902    13.6
JAN-MAR	   29118   24026   28565   34477
OCT-MAR	   23572   19867   22801   26757

APR.	   33040   27212   33130   39609    17.0
MAY	   21932   15213   21096   27990    19.4
JUNE	   15148    6792   11422   18647    20.9
APR-JUN	   23373   18913   22799   26609

JULY	   10235    5209    8964   13511    22.2
AUG.	    7174    4796    6042    7677    23.1
SEP.	    8138    3873    5983   10939    24.4
JUL-SEP	    8515    4960    7242   10541
APR-SEP	   15944   11786   16514   18458

WATYEAR	   19713   17240   20520   21679

Extreme High and Low Monthly and Daily Average Flows for Station 03049500

                    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.	27965.  46 26667.  55 26096.  78 130000. 55 1227.   64 1705.   61 1731.   58 949.    64 
NOV.	45220.  86 37743.  71 35379.  51 100000. 86 2686.   54 2763.   61 3642.   58 1230.   64 
DEC.	48690.  78 47197.  73 42403.  51 206000. 43 2316.   61 6389.   44 6729.   63 1630.   61 
JAN.	68597.  52 49110.  50 48519.  51 181000. 59 4520.   61 6612.   56 6677.   77 2580.   61 
FEB.	53386.  76 52510.  90 51029.  81 125000. 76 7167.   63 8751.   58 9723.   87 2350.   61 
MAR.	87026.  45 72376.  64 61453.  63 195000. 45 10408.  69 16541.  60 20800.  90 4360.   69 
APR.	83780.  40 55707.  57 53483.  47 165000. 40 9000.   46 16269.  76 18164.  68 6380.   46 
MAY	48397.  43 42671.  56 42100.  89 135000. 46 6129.   41 8300.   39 8515.   85 3210.   77 
JUNE	45820.  89 45505.  72 39793.  46 162000. 72 4574.   77 4848.   49 5441.   88 2440.   88 
JULY	34633.  72 21160.  58 21084.  77 92400.  72 1944.   66 2111.   62 2407.   52 1140.   66 
AUG.	23024.  56 21713.  80 20871.  77 55900.  56 1786.   62 1851.   44 1926.   57 1200.   62 
SEP.	22690.  90 22660.  87 22504.  77 52300.  87 1440.   39 1784.   57 1832.   48 990.    39
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