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 USGS Station 05446500
ROCK RIVER NEAR JOSLIN, IL

(National stream-quality accounting network station)

ROCK RIVER BASIN

Latitude: 41^33'35"; Longitude: 90^10'55"
Hydrologic Unit Code: 07090005
Drainage area: 9,549 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 05446500

                                           MEDIAN   
                     25             75     CUMU-    
                   QUAR            QUAR-   LATIVE   
PERIOD      AVG.    ILE   MEDIAN   TILE    RUNOFF   
           (cfs)   (cfs)   (cfs)   (cfs)   (inch)   
-------------------------------------------------
OCT.	    5225    2542    4353    6523    0.53
NOV.	    5886    2977    4996    7105    1.11
DEC.	    5743    3568    5115    7218    1.85
OCT-DEC	    5618    3123    5163    7809
CALYEAR	    6739    4953    6571    8213

JAN.	    5388    3172    3881    7254    2.40
FEB.	    6286    3253    4673    9762    2.95
MAR.	   10858    7076    9530   15413    4.32
JAN-MAR	    7510    5026    7635    9338
OCT-MAR	    6564    4069    6061    8587

APR.	   11320    7686   10305   15303    5.42
MAY	    8679    5789    7874   10389    6.31
JUNE	    6796    3906    6744    8645    7.10
APR-JUN	    8931    6843    7837   10190

JULY	    5533    2732    3891    8053    8.41
AUG.	    4360    2693    3937    5309    8.65
SEP.	    4855    2587    4060    6340    9.33
JUL-SEP	    4916    3126    4780    6680
APR-SEP	    6923    4883    6566    8867

WATYEAR	    6743    5284    6559    7936

Extreme High and Low Monthly and Daily Average Flows for Station 05446500

                    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.	17110.  87 13465.  73 10444.  55 28000.  55 1381.   57 1398.   64 1436.   58 930.    59 
NOV.	16700.  86 14580.  62 11584.  73 22100.  86 1626.   50 1671.   64 1691.   40 1190.   59 
DEC.	14778.  83 12760.  86 9271.   88 25400.  83 1519.   59 1659.   90 1685.   64 1000.   59 
JAN.	15823.  73 14836.  74 14639.  46 38000.  46 1172.   40 1258.   59 1477.   77 834.    40 
FEB.	13648.  74 12664.  71 12000.  66 39000.  71 1554.   40 1805.   64 2100.   63 1000.   59 
MAR.	22503.  48 21535.  85 18308.  73 44700.  48 2803.   54 3061.   68 3732.   57 1650.   40 
APR.	25473.  79 23947.  60 22557.  73 41100.  73 3877.   40 3903.   58 4364.   68 2700.   58 
MAY	26026.  73 21600.  74 18100.  60 38000.  74 2032.   58 2545.   77 2828.   40 1290.   77 
JUNE	19847.  74 16493.  73 10741.  47 28900.  74 2052.   77 2699.   59 2723.   65 1360.   49 
JULY	15424.  78 12339.  69 11360.  90 32900.  78 1902.   65 1956.   63 2105.   88 1260.   46 
AUG.	9873.   87 9318.   72 9290.   79 23500.  72 1349.   58 1488.   63 1708.   64 910.    58 
SEP.	13471.  72 10671.  80 9814.   65 20600.  72 1084.   58 1470.   49 1492.   63 920.    58
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