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 USGS Station 14105700
COLUMBIA RIVER AT THE DALLES, OR

COLUMBIA RIVER MAIN STEM

Latitude: 45^36'27"; Longitude: 121^10'20"
Hydrologic Unit Code: 17070105
Drainage area: 237,000 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 14105700

                                           MEDIAN   
                     25             75     CUMU-    
                   QUAR            QUAR-   LATIVE   
PERIOD      AVG.    ILE   MEDIAN   TILE    RUNOFF   
           (cfs)   (cfs)   (cfs)   (cfs)   (inch)   
-------------------------------------------------
OCT.	   85526   75945   85190   94600    0.41
NOV.	   89359   77690   89595  104525    0.84
DEC.	   91452   69678   82990  101775    1.28
OCT-DEC	   88779   75164   88724   97522
CALYEAR	  186868  156910  184920  211175

JAN.	   96698   71515   86480  123150    1.71
FEB.	  112218   76250  102200  143900    2.20
MAR.	  142671  104875  128450  149075    2.82
JAN-MAR	  117195   90612  112931  148876
OCT-MAR	  102987   84621   98202  126060

APR.	  219127  168575  218150  262825    3.73
MAY	  433303  356025  406050  475500    5.71
JUNE	  493410  385500  466500  614825    8.07
APR-JUN	  381946  337648  371131  430288

JULY	  256093  190625  262450  318150    9.48
AUG.	  136026  110200  138400  155375    10.1
SEP.	   95357   81518   95245  101650    10.6
JUL-SEP	  162492  128188  163914  191949
APR-SEP	  272219  242719  270229  305400

WATYEAR	  186051  162305  182150  207927

Extreme High and Low Monthly and Daily Average Flows for Station 14105700

                    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.	166400. 60 154581.  4 153400. 28 212000. 60 51480.  88 59610.  30 60500.  37 61100.  78 
NOV.	196100. 28 147800. 60 141667. -6 278000. 28 48700.  88 50230.  37 52020.  80 52800.  37 
DEC.	206500. 34 182100. 76 169000. 28 368000. 34 50270.  37 52570.  36 52870.  31 41500.  20 
JAN.	215710. 18 215300. 74 198600. 34 379000. 74 37840.  37 43110.  30 51410. -10 36000.  37 
FEB.	211493.-19 195800. 82 187500. 51 386000. 82 50650.  37 51200.  36 54560.  29 41200.  37 
MAR.	315500. 82 314300. 72 271871. 10 405000. 72 59380.  77 65990.  44 68310.  55 56700.  37 
APR.	399900. 43 386367.-19 379100. 34 554000. 56 102670. 24 117637