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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 01197000 EAST BRANCH HOUSATONIC RIVER AT COLTSVILLE, MA


Berkshire County, Massachusetts
Hydrologic Unit Code 01100005
Latitude  42°28'10.5", Longitude  73°11'50.4" NAD83
Drainage area 57.6  square miles
Contributing drainage area 57.6  square miles
Gage datum 1,002 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 1935-10-01 -> 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
1 120 88 100 280 173 120 71 51 43 67 87 115
2 114 95 105 279 165 117 66 49 54 68 88 116
3 110 98 99 289 164 109 59 43 49 63 107 106
4 98 96 110 298 165 104 68 49 43 65 93 104
5 99 89 107 333 146 86 56 47 42 67 88 110
6 105 86 128 324 139 100 60 50 55 62 88 113
7 101 93 141 300 126 119 55 66 66 65 87 117
8 98 91 134 272 117 101 49 64 55 75 93 110
9 106 81 149 242 121 90 50 50 51 103 109 116
10 97 79 139 260 127 80 52 62 43 67 97 120
11 96 90 144 271 138 81 47 60 51 59 89 117
12 105 91 172 254 148 95 49 65 54 65 98 127
13 105 85 169 252 150 106 54 67 54 60 100 122
14 99 85 180 264 145 112 56 59 51 60 105 120
15 99 90 174 261 141 98 51 52 51 82 104 115
16 91 102 173 284 130 93 59 44 48 88 91 100
17 82 94 193 298 146 88 49 44 48 91 91 102
18 90 91 239 270 140 78 50 52 60 80 89 107
19 97 89 211 251 136 74 58 59 64 74 81 96
20 95 102 206 255 141 73 58 48 68 97 97 89
21 91 108 209 217 124 72 55 44 86 104 109 126
22 99 117 239 211 119 74 67 46 75 84 103 116
23 98 117 204 247 108 76 72 51 61 79 105 99
24 107 119 189 219 119 83 65 46 61 96 90 109
25 136 133 199 217 131 72 53 41 66 97 103 135
26 130 123 219 199 126 84 49 39 64 93 124 127
27 128 114 240 192 115 68 48 34 68 94 112 112
28 116 112 233 179 102 65 65 70 71 99 113 105
29 94 113 247 177 111 66 67 63 71 102 130 103
30 83   268 182 125 82 71 50 72 93 115 112
31 90   295   117   56 42   92   149