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 USGS Station 01076500
PEMIGEWASSET RIVER AT PLYMOUTH, N.H.

MERRIMACK RIVER BASIN

Latitude: 43^45'33"; Longitude: 71^41'10"
Hydrologic Unit Code: 01070001
Drainage area: 622 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 01076500

                                           MEDIAN   
                     25             75     CUMU-    
                   QUAR            QUAR-   LATIVE   
PERIOD      AVG.    ILE   MEDIAN   TILE    RUNOFF   
           (cfs)   (cfs)   (cfs)   (cfs)   (inch)   
-------------------------------------------------
OCT.	    1011     302     783    1286    1.45
NOV.	    1343     985    1327    1818    3.98
DEC.	    1139     738     890    1316    6.42
OCT-DEC	    1164     867    1167    1558
CALYEAR	    1355    1099    1278    1544

JAN.	     738     431     565     939    7.46
FEB.	     842     392     519    1014    8.26
MAR.	    1626     783    1372    2254    11.5
JAN-MAR	    1068     590     968    1491
OCT-MAR	    1116     827    1055    1456

APR.	    3860    3147    3605    4566    18.3
MAY	    2963    2106    3022    3435    24.2
JUNE	    1169     661    1002    1382    26.1
APR-JUN	    2664    2203    2634    3015

JULY	     647     327     432     749    27.2
AUG.	     580     254     336     514    28.6
SEP.	     484     255     419     633    29.1
JUL-SEP	     570     343     402     708
APR-SEP	    1617    1335    1560    1841

WATYEAR	    1367    1171    1331    1540

Extreme High and Low Monthly and Daily Average Flows for Station 01076500

                    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.	3423.   78 2855.   60 2778.   82 33500.  60 129.    48 167.    64 171.    62 60.     24 
NOV.	4578.   28 3444.   60 3011.    8 40100.  28 308.    79 335.     9 335.    23 113.    48 
DEC.	4588.   74 3505.   58 2900.   84 24600.  58 216.    48 265.    23 301.    56 150.    48 
JAN.	2276.   78 1974.   49 1974.   13 14000.  86 148.    31 165.    48 202.    40 130.    20 
FEB.	4379.   81 2585.   15 2362.   25 17500.  81 138.    31 178.    40 202.    48 89.     31 
MAR.	9266.   36 5555.   53 5404.   13 57300.  36 205.    40 415.    56 439.    41 119.    31 
APR.	7206.   69 6978.   23 6457.    9 38400.  87 1986.   65 2037.   57 2197.   46 300.    65 
MAY	5304.   40 5239.   72 4925.   37 24700.  84 806.    21 826.    41 1086.   87 255.    21 
JUNE	3878.   17 3448.   22 3068.   73 31200.  73 283.    21 370.    64 377.    53 130.    21 
JULY	3103.   73 2048.   15 1475.   25 31600.  73 160.    23 191.    53 241.    33 80.     11 
AUG.	3345.   90 1599.   81 1489.   43 17200.  90 111.    23 155.    19 186.    65 57.     23 
SEP.	3813.   38 3053.   54 2390.    5 34800.  38 107.    23 128.    48 153.    78 45.     23
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