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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 01095220 STILLWATER RIVER NEAR STERLING, MA


Worcester County, Massachusetts
Hydrologic Unit Code 01070004
Latitude  42°24'39", Longitude  71°47'30" NAD27
Drainage area 29.1  square miles
Contributing drainage area 0.00  square miles
Gage datum 399.28 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 1993-10-01 -> 2024-09-30)

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 63 55 86 157 92 43 29 22 9.8 21 53 63
2 65 54 83 158 83 44 44 17 33 18 44 71
3 63 60 89 148 74 48 58 14 21 17 57 68
4 65 67 88 146 72 49 43 13 13 18 49 59
5 68 78 90 146 68 41 36 14 10 27 39 51
6 62 74 87 125 67 38 25 12 9.7 23 37 55
7 62 78 111 126 63 56 20 11 18 19 39 56
8 66 65 111 118 61 68 21 12 23 17 37 59
9 63 57 131 108 61 54 29 11 24 22 43 55
10 73 54 114 108 61 44 33 11 19 20 49 73
11 74 60 100 97 67 44 31 12 17 20 45 84
12 72 66 109 95 67 44 26 15 47 25 44 86
13 94 66 107 103 62 42 27 18 23 20 55 82
14 99 76 128 114 76 58 35 20 17 20 56 80
15 93 63 137 104 72 54 24 19 13 48 55 78
16 76 58 132 144 73 42 28 18 13 44 51 69
17 71 60 114 156 83 42 34 13 18 32 59 74
18 64 74 109 124 68 51 27 14 27 24 55 101
19 77 81 108 108 64 40 24 17 36 22 44 97
20 82 67 110 97 66 36 18 14 21 33 43 76
21 70 62 107 88 60 31 15 12 16 44 42 74
22 57 69 123 98 50 30 21 15 13 44 44 73
23 55 74 134 105 44 37 21 18 15 37 51 76
24 71 75 123 107 51 37 36 17 23 35 52 93
25 108 99 110 86 55 37 31 15 21 39 50 121
26 104 120 105 77 63 37 20 15 22 53 50 109
27 93 95 112 91 64 32 19 11 21 48 63 92
28 92 97 111 85 49 29 20 18 18 50 57 86
29 73 112 134 79 46 32 18 22 21 56 51 78
30 61   163 82 43 28 18 16 29 75 52 71
31 58   174   42   19 12   70   63