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 USGS Station 05435500
PECATONICA RIVER AT FREEPORT, IL

ROCK RIVER BASIN

Latitude: 42^18'13"; Longitude: 89^36'57"
Hydrologic Unit Code: 07090003
Drainage area: 1,326 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 05435500

                                           MEDIAN   
                     25             75     CUMU-    
                   QUAR            QUAR-   LATIVE   
PERIOD      AVG.    ILE   MEDIAN   TILE    RUNOFF   
           (cfs)   (cfs)   (cfs)   (cfs)   (inch)   
-------------------------------------------------
OCT.	     730     448     661     890    0.58
NOV.	     836     501     652    1081    1.12
DEC.	     747     481     629    1088    1.67
OCT-DEC	     771     482     648    1099
CALYEAR	     947     607     964    1105

JAN.	     738     420     662     889    2.24
FEB.	     968     488     883    1467    2.94
MAR.	    1728     958    1652    2464    4.45
JAN-MAR	    1144     862    1108    1418
OCT-MAR	     957     676     867    1212

APR.	    1264     734    1163    1786    5.59
MAY	    1053     630     796    1325    6.32
JUNE	     918     562     843    1130    6.97
APR-JUN	    1078     698     971    1433

JULY	     886     462     674    1141    7.47
AUG.	     702     390     679     835    7.98
SEP.	     792     418     701     890    8.84
JUL-SEP	     793     478     790    1108
APR-SEP	     935     612     962    1194

WATYEAR	     947     644     861    1174

Extreme High and Low Monthly and Daily Average Flows for Station 05435500

                    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.	2654.   28 1940.   87 1679.   20 5310.   28 228.    65 241.    57 273.    64 173.    38 
NOV.	2773.   62 2047.   86 1840.   29 4210.   29 258.    65 274.    38 282.    59 150.    65 
DEC.	1807.   83 1755.   29 1448.   86 5440.   73 201.    59 202.    65 219.    77 124.    33 
JAN.	2817.   73 2547.   60 2476.   16 10000.  46 163.    59 198.    77 240.    40 150.    59 
FEB.	3992.   38 3322.   15 2843.   53 14200.  22 282.    64 293.    34 304.    72 150.    65 
MAR.	4915.   29 3887.   59 3815.   48 17000.  16 356.    57 377.    54 396.    31 219.    34 
APR.	3522.   60 3234.   59 3050.   23 12600.  23 396.    57 447.    38 450.    56 219.    34 
MAY	3931.   73 3315.   60 2507.   33 5850.   60 232.    34 312.    31 321.    58 189.    34 
JUNE	2654.   74 2089.   73 1990.   47 4710.   45 266.    34 290.    31 295.    36 152.    34 
JULY	3349.   69 2478.   51 2433.   90 10800.  69 211.    36 225.    65 231.    31 136.    34 
AUG.	2036.   24 1926.   42 1723.   51 5280.   42 233.    34 242.    58 261.    31 118.    36 
SEP.	3011.   38 2790.   14 2634.   15 13000.  14 218.    58 254.    64 259.    37 182.    34
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