(Link to USGS home page.)
 USGS Station 06454500
NIOBRARA RIVER ABOVE BOX BUTTE RESERVOIR, NE

NIOBRARA RIVER BASIN

Latitude: 42^27'35"; Longitude: 103^10'15"
Hydrologic Unit Code: 10150002
Drainage area: 1,400 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 06454500

                                           MEDIAN   
                     25             75     CUMU-    
                   QUAR            QUAR-   LATIVE   
PERIOD      AVG.    ILE   MEDIAN   TILE    RUNOFF   
           (cfs)   (cfs)   (cfs)   (cfs)   (inch)   
-------------------------------------------------
OCT.	    18.4    13.1    16.7    21.0    0.01
NOV.	    27.2    23.1    27.4    31.9    0.04
DEC.	    29.2    25.9    29.0    33.0    0.06
OCT-DEC	    24.9    21.7    24.3    28.0
CALYEAR	    26.9    24.0    26.1    29.2

JAN.	    27.6    24.3    26.8    31.7    0.08
FEB.	    35.6    30.1    35.9    41.2    0.11
MAR.	    49.3    42.2    48.0    55.6    0.15
JAN-MAR	    37.5    33.3    37.3    41.0
OCT-MAR	    31.2    28.8    30.9    32.9

APR.	    42.3    33.3    43.3    50.8    0.19
MAY	    30.0    22.4    27.6    36.8    0.21
JUNE	    21.1    12.9    15.1    27.1    0.23
APR-JUN	    31.1    24.6    30.9    36.0

JULY	    14.0    9.20    12.1    17.2    0.24
AUG.	    14.1    9.87    14.3    18.0    0.24
SEP.	    13.3    10.4    12.6    16.6    0.26
JUL-SEP	    13.8   10.00    13.4    17.5
APR-SEP	    22.5    18.5    20.6    24.7

WATYEAR	    26.8    24.6    26.4    29.3

Extreme High and Low Monthly and Daily Average Flows for Station 06454500

                    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.	41.90   47 37.     66 35.60   74 48.     47 3.86    57 5.14    54 5.21    55 2.50    65 
NOV.	45.20   49 44.40   58 43.10   52 58.     47 13.20   90 15.10   55 16.10   65 7.50    53 
DEC.	49.50   51 47.90   48 47.50   49 60.     47 17.     90 18.40   86 22.30   80 10.     86 
JAN.	43.40   48 42.50   47 41.10   51 66.     74 10.     49 17.40   88 19.70   89 8.      88 
FEB.	56.60   63 49.90   52 49.40   50 108.    86 21.60   89 24.10   88 24.90   90 10.     49 
MAR.	106.    48 99.20   49 80.30   60 206.    48 36.40   81 38.     89 40.20   82 19.     89 
APR.	67.30   57 63.50   58 63.40   49 153.    75 19.70   67 23.30