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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 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 993 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 -> 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
1 124 87 100 286 175 118 71 51 43 67 87 115
2 117 94 104 285 166 115 67 49 54 68 88 115
3 112 98 99 290 165 108 66 43 49 63 107 107
4 102 99 110 298 165 102 74 48 43 64 92 106
5 103 91 106 333 147 85 61 47 42 67 88 111
6 107 87 127 323 138 98 62 50 55 62 88 113
7 103 94 142 299 126 117 55 66 65 66 87 118
8 99 92 138 274 116 99 49 63 55 78 92 111
9 106 81 150 243 120 90 50 50 51 103 108 116
10 97 80 139 259 126 81 69 61 42 67 97 119
11 95 91 143 268 136 81 57 59 50 59 89 117
12 104 91 171 252 146 94 53 64 54 65 99 128
13 108 85 168 250 148 104 58 66 54 60 100 122
14 102 85 179 261 143 110 61 58 51 61 104 120
15 99 90 173 257 139 97 54 53 51 82 103 115
16 92 102 173 281 128 92 63 46 48 87 91 102
17 82 95 192 295 144 87 54 47 48 91 91 103
18 90 97 237 267 139 78 53 55 59 81 89 108
19 97 92 211 251 135 73 59 61 65 74 81 97
20 95 104 208 255 140 72 59 49 68 96 96 90
21 91 108 209 215 124 71 56 44 85 108 108 125
22 99 118 237 209 118 73 68 46 75 88 102 116
23 98 123 203 248 108 75 72 51 61 80 105 104
24 107 122 191 221 117 83 64 45 61 96 90 115
25 135 133 202 216 130 74 53 42 67 97 103 138
26 130 123 220 198 124 87 49 40 65 92 122 129
27 129 114 241 191 114 75 48 35 68 93 113 113
28 116 111 234 178 101 68 65 69 70 98 114 106
29 94 113 246 175 111 67 67 62 71 101 130 104
30 83   267 181 123 82 71 50 73 94 115 112
31 90   292   115   56 43   93   149