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 USGS Station 09415000
VIRGIN RIVER AT LITTLEFIELD, AZ

(National Stream-Quality Accounting Network Station)

VIRGIN RIVER BASIN

Latitude: 36^53'30"; Longitude: 113^55'25"
Hydrologic Unit Code: 15010010
Drainage area: 5,090 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 09415000

                                           MEDIAN   
                     25             75     CUMU-    
                   QUAR            QUAR-   LATIVE   
PERIOD      AVG.    ILE   MEDIAN   TILE    RUNOFF   
           (cfs)   (cfs)   (cfs)   (cfs)   (inch)   
-------------------------------------------------
OCT.	     140    91.6     114     186    0.03
NOV.	     190     134     181     224    0.07
DEC.	     247     145     194     264    0.11
OCT-DEC	     192     140     163     228
CALYEAR	     245     140     186     247

JAN.	     241     154     206     246    0.17
FEB.	     311     157     234     302    0.22
MAR.	     351     128     217     360    0.31
JAN-MAR	     301     154     219     324
OCT-MAR	     246     150     232     277

APR.	     413    86.4     265     566    0.36
MAY	     437    94.4     203     393    0.39
JUNE	     161    63.0    90.3     151    0.41
APR-JUN	     337    95.1     201     354

JULY	   100.0    63.6    82.1     121    0.44
AUG.	     156    78.0     124     228    0.46
SEP.	     145    68.2     113     190    0.48
JUL-SEP	     133    88.2     121     158
APR-SEP	     235     105     165     239

WATYEAR	     241     137     179     262

Extreme High and Low Monthly and Daily Average Flows for Station 09415000

                    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.	602.    47 371.    42 322.    46 6760.   47 53.40   65 64.90   36 67.40   57 44.     65 
NOV.	552.    47 354.    88 347.    66 3130.   47 102.    57 104.    63 105.    78 56.     65 
DEC.	1247.   67 504.    83 421.    66 15200.  67 111.    64 115.    77 121.    63 89.     78 
JAN.	775.    69 598.    80 540.    89 8420.   89 108.    64 125.    61 140.    75 75.     64 
FEB.	2330.   80 1327.   32 688.    40 10000.  32 119.    77 130.    61 131.    64 95.     74 
MAR.	1708.   78 1645.   83 1380.   38 17000.  38 85.40   77 92.     72 98.80   63 50.     65 
APR.	1385.   69 1338.   52 1262.   79 3550.   78 61.60   34 64.50