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 USGS Station 05572000
SANGAMON RIVER AT MONTICELLO, IL

ILLINOIS RIVER BASIN

Latitude: 40^01'51"; Longitude: 88^35'20"
Hydrologic Unit Code: 07130006
Drainage area: 550 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 05572000

                                           MEDIAN   
                     25             75     CUMU-    
                   QUAR            QUAR-   LATIVE   
PERIOD      AVG.    ILE   MEDIAN   TILE    RUNOFF   
           (cfs)   (cfs)   (cfs)   (cfs)   (inch)   
-------------------------------------------------
OCT.	     149    10.2    25.1     186    0.05
NOV.	     234    25.1    42.8     229    0.18
DEC.	     425    29.5     233     870    1.10
OCT-DEC	     269    26.3     176     419
CALYEAR	     424     257     400     542

JAN.	     336    75.4     196     510    2.12
FEB.	     556     170     382    1047    3.47
MAR.	     781     358     605    1121    4.83
JAN-MAR	     557     322     454     836
OCT-MAR	     413     191     390     616

APR.	     822     404     661    1141    6.38
MAY	     731     286     593    1027    7.46
JUNE	     525     174     331     681    8.20
APR-JUN	     692     378     615    1069

JULY	     302    81.6     157     378    9.32
AUG.	     188    24.6    52.4     169    9.43
SEP.	     106    16.2    37.4     112    9.82
JUL-SEP	     198    47.0     136     220
APR-SEP	     445     273     394     583

WATYEAR	     430     277     398     593

Extreme High and Low Monthly and Daily Average Flows for Station 05572000

                    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.	2868.   27 1191.   42 1181.   78 18700.  27 1.32    89 2.97    54 3.24    64 0.00    89 
NOV.	2842.   86 1316.   42 1135.   27 9490.   86 5.50    15 5.67    55 5.93    64 0.00    89 
DEC.	2155.   28 1538.   72 1449.   24 7600.   50 3.67    64 4.12    77 7.98    54 1.50    64 
JAN.	2636.   50 1493.   16 1480.   30 6380.   16 3.43    77 7.65    15 9.03    31 1.50    64 
FEB.	1899.   59 1890.    8 1870.   51 9200.   59 10.     31 20.40   17 20.70   63 2.      40 
MAR.	2472.   79 2339.   82 2142.   12 11600.  39 20.20   31 44.90   54 61.90   41 9.10    31 
APR.	2753.   22 2714.   27 2487.   44 9600.   64 41.     90 57.60   31 88.80   15 18.     31 
MAY	3609.    8 3164.   43 2022.   33 15400.  43 42.60   34 60.70   54 85.90   15 20.     15 
JUNE	2081.   74 2050.   73 1744.   90 8790.   19 19.26   34 29.77   11 38.90   63 8.      11 
JULY	1520.   81 1467.   29 1044.   62 8720.    9 3.85    88 7.62    11 7.95    14 1.      14 
AUG.	1486.   81 1440.   15 1386.   77 5550.   77 1.76    88 3.58    14 3.74    30 0.00    88 
SEP.	2427.   26 566.    15 546.    77 5580.   26 0.48    88 2.46    40 3.60    30 0.00    88
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