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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 01198000 GREEN RIVER NEAR GREAT BARRINGTON, MA


Berkshire County, Massachusetts
Hydrologic Unit Code 01100005
Latitude  42°11'34.47", Longitude  73°23'28.43" NAD83
Drainage area 51.0  square miles
Contributing drainage area 51.0  square miles
Gage datum 689.35 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 1951-10-01 -> 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 99 89 105 251 161 73 49 42 30 44 73 112
2 96 83 101 262 142 71 56 36 63 40 67 98
3 107 85 99 273 137 65 59 31 38 45 99 99
4 99 89 104 281 138 64 58 29 30 41 89 95
5 91 82 120 290 142 57 50 32 28 47 83 101
6 92 82 145 287 128 58 41 29 48 40 82 95
7 93 102 194 276 119 55 39 27 71 42 88 111
8 85 88 179 253 116 57 44 25 54 45 95 107
9 86 80 183 221 114 64 54 27 44 38 79 97
10 101 77 159 212 116 58 63 33 32 33 73 115
11 94 96 167 206 109 64 46 26 32 34 69 138
12 105 96 158 197 120 61 50 29 33 38 89 185
13 121 99 154 199 114 63 88 26 36 32 80 135
14 98 94 145 205 113 70 90 25 30 33 79 133
15 92 79 144 187 105 65 62 23 26 34 86 123
16 93 80 156 218 104 60 75 23 27 43 80 109
17 84 85 142 230 111 59 68 19 24 65 75 102
18 79 100 144 196 98 60 67 37 32 48 69 143
19 100 87 149 180 93 58 64 39 32 44 70 125
20 145 81 159 168 92 50 48 27 33 46 81 109
21 98 86 155 153 91 66 43 24 28 59 76 135
22 108 93 148 149 92 56 39 35 32 57 76 119
23 105 100 170 171 82 57 36 49 32 48 75 119
24 120 98 178 157 80 55 38 37 36 54 79 129
25 164 134 186 152 79 49 35 29 34 56 87 147
26 144 145 194 138 80 75 32 27 34 73 80 129
27 157 118 214 145 74 57 35 25 35 62 91 121
28 143 112 202 136 71 52 42 99 37 70 91 124
29 111 109 211 146 68 45 37 55 41 69 96 116
30 97   235 152 77 40 75 34 49 74 93 113
31 97   253   67   50 34   78   104