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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 65 67 80 114 67 49 32 17 17 26 39 58
2 66 68 86 114 63 49 30 16 20 26 39 55
3 64 76 91 110 61 48 27 15 18 25 42 56
4 68 78 84 115 61 45 26 15 17 27 40 55
5 68 72 81 113 58 45 25 16 17 25 42 57
6 63 67 82 109 58 50 25 16 17 30 41 59
7 64 68 89 105 57 58 25 17 19 30 40 61
8 65 69 87 101 55 58 24 25 16 26 41 63
9 66 65 88 96 58 47 24 24 17 30 44 60
10 71 62 90 95 64 44 24 24 17 28 45 64
11 68 63 87 93 60 43 21 21 23 26 48 66
12 66 67 86 90 56 43 21 22 23 26 46 77
13 72 70 90 90 55 45 23 23 22 25 47 73
14 72 75 102 90 58 53 23 22 22 27 47 70
15 70 69 111 85 57 45 21 22 20 39 46 71
16 70 72 103 92 59 41 21 23 21 37 47 70
17 67 74 102 95 59 40 22 20 25 36 49 73
18 65 71 110 88 56 40 21 23 27 33 49 78
19 67 72 101 84 56 36 19 39 28 32 46 75
20 68 73 98 80 51 33 19 31 26 37 47 68
21 67 71 96 76 53 32 20 24 26 42 50 68
22 67 70 106 75 50 31 20 24 28 35 51 70
23 67 70 109 79 49 33 20 22 27 36 54 69
24 76 72 106 78 48 31 25 22 24 36 54 71
25 82 81 100 75 51 30 25 22 24 36 56 72
26 90 86 96 72 53 28 22 21 26 38 58 69
27 82 79 98 77 47 27 19 19 27 37 58 74
28 79 79 98 74 43 29 19 18 25 39 55 68
29 75 73 103 72 43 28 18 20 27 41 55 67
30 71   115 67 45 30 19 21 27 44 56 68
31 69   114   47   17 18   42   65