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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 456 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 -> 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 51 40 53 152 75 63 33 20 12 32 37 72
2 47 50 57 164 78 59 29 27 11 27 45 61
3 45 64 54 167 75 56 30 21 13 25 56 58
4 44 53 66 169 76 57 31 23 14 31 35 57
5 48 53 60 179 66 50 29 20 17 24 43 55
6 46 49 63 147 76 98 25 18 23 30 45 50
7 44 47 73 133 64 78 24 20 33 27 37 51
8 52 40 76 121 60 56 22 30 26 40 61 53
9 62 38 78 116 67 48 23 27 21 73 68 52
10 49 50 68 146 77 50 23 21 16 29 52 56
11 49 55 86 132 78 46 18 31 19 26 48 67
12 44 48 81 125 79 47 18 39 18 33 65 73
13 42 46 83 133 83 52 32 28 17 32 54 66
14 60 44 86 123 76 61 27 24 16 41 48 61
15 48 48 91 117 66 47 19 21 15 53 50 54
16 42 53 79 185 70 45 35 18 31 33 50 52
17 40 43 98 138 72 46 18 16 32 32 57 68
18 55 48 96 112 73 42 18 20 43 30 47 55
19 56 44 108 109 74 38 19 22 27 31 41 47
20 49 58 116 110 71 35 18 16 20 62 62 42
21 46 55 108 104 64 33 18 20 16 50 52 82
22 45 57 129 111 53 32 23 18 18 36 52 54
23 43 53 113 116 52 40 26 16 26 42 52 53
24 53 66 91 122 71 36 23 14 22 40 43 70
25 65 88 99 99 75 32 18 16 31 47 50 68
26 66 68 107 87 62 40 19 13 34 42 64 55
27 79 56 125 96 54 28 25 12 38 36 58 61
28 57 54 119 91 47 43 24 60 37 56 57 52
29 46 63 140 86 67 37 31 20 40 56 57 49
30 43   156 76 69 52 26 18 46 48 58 50
31 47   159   67   23 14   32   48