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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 01169900 SOUTH RIVER NEAR CONWAY, MA


Franklin County, Massachusetts
Hydrologic Unit Code 01080203
Latitude  42°32'31", Longitude  72°41'39" NAD27
Drainage area 24.1  square miles
Contributing drainage area 24.1  square miles
Gage datum 459.45 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 1965-10-01 -> 2023-09-30)

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 52 42 53 150 79 61 32 20 13 31 38 72
2 49 51 58 160 80 57 30 26 17 26 44 61
3 46 64 55 163 76 55 30 20 15 24 54 58
4 45 65 66 164 77 55 31 22 14 33 35 56
5 48 61 60 174 70 48 28 19 17 27 42 54
6 46 53 64 143 76 94 25 18 23 30 44 50
7 45 49 74 130 65 75 23 20 32 26 36 50
8 51 41 76 122 61 54 22 29 26 38 59 52
9 61 38 78 116 67 47 25 26 20 69 64 52
10 49 50 68 143 76 48 24 20 16 28 49 57
11 50 55 86 129 76 45 19 30 19 25 46 67
12 48 48 82 122 77 45 22 37 17 31 64 73
13 43 46 84 132 81 50 33 27 17 31 53 65
14 60 44 85 121 75 58 27 23 15 40 47 64
15 49 47 90 115 64 45 19 20 15 50 49 55
16 43 54 79 181 69 43 34 18 30 32 49 53
17 42 47 97 136 71 45 19 16 31 35 55 69
18 56 51 95 111 71 40 25 19 41 30 46 58
19 57 44 108 110 72 37 24 22 26 30 40 51
20 50 57 116 109 69 33 20 16 20 59 59 45
21 46 55 106 103 62 32 19 20 16 48 50 81
22 45 58 126 110 52 31 23 18 18 34 50 54
23 44 56 110 113 51 38 27 22 25 40 51 52
24 54 65 91 119 69 34 23 18 22 38 42 69
25 66 87 100 97 72 32 18 17 30 46 49 80
26 67 68 107 85 60 38 19 13 32 43 62 58
27 78 60 124 95 53 27 25 12 36 37 57 62
28 57 56 119 90 46 41 24 57 35 54 55 53
29 47 64 141 87 66 36 30 20 38 54 55 50
30 44   155 79 67 49 28 18 44 48 58 52
31 48   156   66   23 14   35   49