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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 01163200 OTTER RIVER AT OTTER RIVER, MA


Worcester County, Massachusetts
Hydrologic Unit Code 01080202
Latitude  42°35'18", Longitude  72°02'29" NAD27
Drainage area 34.1  square miles
Contributing drainage area 34.1  square miles
Gage datum 899.33 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 1964-10-01 -> 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 67 63 76 162 96 76 41 25 22 39 56 73
2 68 61 73 163 94 74 42 25 22 39 54 76
3 66 67 77 165 92 69 40 24 22 37 56 77
4 65 79 79 164 90 65 36 25 20 36 55 76
5 66 80 79 166 86 61 35 25 21 38 53 73
6 65 73 82 166 81 63 36 25 20 37 53 71
7 61 67 98 160 78 69 34 25 25 35 52 73
8 62 62 104 146 74 69 32 29 27 33 51 73
9 63 57 104 135 72 65 33 33 28 38 56 68
10 63 55 103 132 72 59 37 36 28 41 58 69
11 65 58 103 136 76 54 35 34 27 37 59 74
12 68 62 104 135 77 52 31 37 29 39 60 77
13 72 63 104 135 76 51 31 39 26 40 63 76
14 75 63 110 134 76 55 34 35 23 40 64 74
15 73 63 123 129 75 55 31 31 21 45 63 77
16 66 64 118 130 76 50 28 30 21 48 62 75
17 62 66 113 139 79 49 29 26 22 48 64 75
18 59 67 119 130 76 55 32 26 28 46 64 83
19 62 69 122 118 74 52 31 28 36 46 60 84
20 64 68 122 111 73 46 29 32 33 45 58 73
21 64 66 116 106 72 43 27 30 29 52 60 68
22 58 71 123 103 67 40 30 27 28 57 63 78
23 56 77 125 107 60 41 32 26 29 53 66 76
24 63 79 127 111 63 43 35 23 30 53 65 81
25 78 86 126 109 66 40 35 22 32 52 64 91
26 86 91 126 100 67 39 30 20 38 55 66 93
27 91 86 133 101 67 37 28 19 46 56 72 85
28 92 82 136 99 62 38 31 22 46 56 76 78
29 84 99 139 96 57 40 33 27 42 57 75 73
30 75   149 95 64 40 30 27 42 62 72 71
31 68   157   68   26 25   63   67