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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 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 -> 2022-09-30)

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 41 53 150 80 62 32 20 13 31 39 73
2 49 50 57 161 80 58 30 27 18 26 45 61
3 46 64 54 164 76 55 31 21 15 24 55 59
4 45 53 66 166 77 56 32 23 14 33 35 56
5 48 53 60 175 70 49 29 20 17 27 43 55
6 46 49 63 144 77 95 25 18 23 30 45 50
7 45 47 72 131 65 76 24 20 33 26 37 50
8 51 40 74 119 61 54 22 29 26 39 60 52
9 62 37 77 115 67 47 25 27 21 70 65 52
10 49 50 67 143 77 48 24 20 16 28 50 57
11 50 55 85 129 77 45 19 30 19 26 46 67
12 48 48 81 123 78 45 22 38 17 32 64 73
13 43 45 84 132 82 51 33 27 17 31 54 65
14 60 43 85 122 76 59 27 24 15 40 48 64
15 49 47 90 116 65 46 20 20 15 51 49 55
16 43 54 78 183 70 43 34 18 30 32 49 53
17 41 45 96 137 71 45 20 16 31 35 56 69
18 55 48 95 111 72 40 25 20 42 30 46 58
19 56 44 107 108 73 37 24 22 26 30 41 51
20 49 57 115 109 70 34 20 16 20 60 60 45
21 47 55 106 103 63 32 20 20 16 49 51 81
22 46 57 127 110 52 31 24 19 18 35 51 54
23 44 52 111 114 51 39 27 22 26 41 51 52
24 54 65 90 120 69 35 24 18 22 39 43 69
25 66 87 99 98 73 32 19 17 30 46 49 81
26 68 68 106 86 61 39 20 13 33 44 63 58
27 79 59 124 95 53 28 26 12 36 37 57 62
28 57 55 119 91 46 41 25 58 35 55 56 53
29 47 64 142 88 67 36 31 20 39 54 55 50
30 43   156 79 68 50 28 18 45 49 59 52
31 48   157   67   23 14   36   49