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USGS Surface-Water Daily Statistics for Massachusetts

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ICE EFFECTS ON STREAMFLOW

The formation of ice on rivers can cause discharge values to appear unusually high. Display of these erroneous discharge data may result in improper assessment of flow conditions and misuse of the data. For this reason, display of discharge values for streams significantly affected by ice may be disabled from view. Display of discharge data will resume when ice conditions are no longer present. Discharge values for streams minimally affected by ice will continue to be displayed. Flows for streams with these conditions appear to increase during the night and decrease to near-base-line conditions around midday. To estimate the correct discharge for these streams, use the flow rate that corresponds to the bottom of the discharge curve, rather than the peak that corresponds to the top of the curve. Note that this method of estimation is possible only when no surface runoff is occurring. Daily mean discharges for periods of both significant and minimal ice-effect will be estimated and published in the Annual Water-Data Report for the water year in which they occurred.


The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 01105000 NEPONSET RIVER AT NORWOOD, MA


Norfolk County, Massachusetts
Hydrologic Unit Code 01090001
Latitude  42°10'39", Longitude  71°12'05" NAD27
Drainage area 34.7  square miles
Contributing drainage area 34.7  square miles
Gage datum 44.04 feet above NGVD29
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00060, Discharge, cubic feet per second,
Day of
month
Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1939-10-01 -> 2019-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 68 68 91 135 79 58 33 19 19 26 42 57
2 71 71 97 136 76 59 30 19 17 25 41 58
3 70 80 103 134 74 59 28 17 18 26 45 58
4 72 85 100 132 74 57 26 16 18 27 44 57
5 72 80 96 132 72 55 26 16 17 25 44 57
6 67 74 98 131 71 60 25 15 17 27 44 58
7 68 76 103 127 69 62 25 18 18 27 43 64
8 68 78 103 121 67 65 23 28 18 26 42 64
9 68 72 107 114 70 58 22 28 18 28 45 64
10 68 68 107 111 73 52 21 28 18 27 45 65
11 68 69 104 109 73 49 20 27 20 26 45 65
12 67 73 105 105 69 47 20 27 20 25 48 71
13 69 75 108 103 68 50 21 26 20 23 49 72
14 70 78 117 103 70 58 22 24 19 26 50 71
15 72 78 125 101 68 54 21 23 22 37 50 73
16 71 79 126 105 67 49 19 24 22 37 49 70
17 66 79 126 110 66 49 18 23 23 33 51 73
18 65 80 131 104 64 48 18 25 26 32 48 74
19 68 81 127 100 64 44 17 34 25 31 45 70
20 69 82 122 97 63 41 18 35 26 36 46 66
21 70 80 120 94 61 38 20 30 25 41 51 68
22 70 79 129 93 58 36 21 25 26 36 53 71
23 70 79 131 96 54 35 23 24 25 36 55 69
24 79 84 125 96 55 33 27 22 23 36 54 70
25 90 94 121 94 58 33 26 22 24 37 59 69
26 95 97 117 91 63 32 23 20 27 38 61 70
27 91 93 118 92 60 30 24 20 28 36 62 76
28 88 92 117 90 56 31 23 22 28 36 58 74
29 80 88 118 88 53 31 21 20 30 40 58 72
30 75   130 83 51 32 20 19 28 43 59 71
31 71   133   54   19 19   41   68