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USGS 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 01105500 EAST BRANCH NEPONSET RIVER AT CANTON, MA


Norfolk County, Massachusetts
Hydrologic Unit Code 01090001
Latitude  42°09'16", Longitude  71°08'47" NAD27
Drainage area 27.2  square miles
Contributing drainage area 27.2  square miles
Gage datum 79.40 feet above NAVD88
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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 1952-10-01 -> 2025-09-30)

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 64 66 80 115 67 49 32 17 17 26 39 58
2 65 68 86 115 64 49 30 16 20 26 39 56
3 64 77 92 111 61 48 27 15 18 26 43 56
4 68 79 84 115 61 45 26 15 17 27 40 56
5 68 73 82 114 58 45 25 16 17 25 42 58
6 63 68 81 110 58 50 25 16 17 30 42 60
7 64 69 88 105 57 58 25 17 19 30 40 62
8 66 69 87 101 55 58 24 25 16 27 41 63
9 67 65 88 96 58 47 24 24 17 30 45 60
10 71 62 91 95 63 44 24 24 17 29 46 64
11 69 64 88 94 60 43 21 21 23 26 49 66
12 67 68 87 90 56 43 21 22 23 26 47 74
13 73 70 91 90 55 45 23 23 22 26 48 71
14 72 75 103 90 58 53 23 22 22 27 48 70
15 71 69 112 86 57 45 21 22 20 40 47 71
16 71 72 104 93 59 41 21 23 21 37 47 71
17 68 72 101 96 59 40 22 20 25 36 50 74
18 66 71 109 88 56 40 21 23 27 34 49 79
19 67 73 101 85 56 36 19 39 28 33 47 74
20 68 73 98 81 52 33 19 31 26 37 47 68
21 68 71 96 76 53 32 20 24 26 42 50 68
22 67 71 106 75 49 31 20 24 28 36 51 70
23 67 71 109 80 45 33 20 22 27 36 54 69
24 76 73 106 79 46 31 25 22 24 36 54 72
25 83 81 100 76 50 30 25 22 24 37 57 73
26 91 86 96 73 52 28 22 21 26 38 58 70
27 82 79 98 78 46 27 19 19 27 38 59 75
28 80 79 99 75 42 29 19 18 25 39 56 69
29 75 73 104 72 42 28 18 20 27 41 56 68
30 72   115 67 44 30 19 21 27 45 57 68
31 69   115   46   17 18   42   64