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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 01170100 GREEN RIVER NEAR COLRAIN, MA


Franklin County, Massachusetts
Hydrologic Unit Code 01080203
Latitude  42°42'12", Longitude  72°40'16" NAD27
Drainage area 41.4  square miles
Contributing drainage area 41.4  square miles
Gage datum 434.51 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 1967-10-01 -> 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 88 65 82 277 165 95 74 39 21 49 77 118
2 89 79 87 270 168 87 73 44 30 47 91 125
3 81 93 86 257 159 88 65 33 25 39 94 107
4 75 88 98 278 159 88 58 35 26 50 69 98
5 81 85 90 306 135 75 52 36 24 47 75 95
6 82 80 107 269 145 107 44 32 41 50 83 88
7 72 74 109 247 127 110 43 38 45 46 71 92
8 83 68 110 227 115 88 42 43 30 55 90 87
9 94 61 119 215 125 70 47 37 34 87 118 81
10 79 63 113 256 125 72 40 47 27 49 97 93
11 81 80 135 259 130 76 34 43 32 43 87 97
12 92 75 130 236 129 73 44 47 30 54 102 105
13 79 66 146 257 136 88 46 40 32 48 95 106
14 87 63 146 253 131 103 47 40 28 52 88 114
15 82 65 144 252 117 78 38 36 26 71 89 103
16 73 71 136 289 116 77 49 34 32 59 85 90
17 66 67 166 279 120 72 47 28 36 74 96 107
18 77 73 162 246 116 62 56 32 46 59 82 97
19 93 71 174 235 121 68 38 33 38 58 73 81
20 81 92 171 239 120 60 33 28 34 93 99 73
21 72 84 172 230 114 51 32 30 30 88 94 125
22 69 89 199 223 95 50 33 30 30 66 84 108
23 72 86 170 237 87 60 40 31 39 76 85 93
24 80 102 157 244 112 58 38 29 40 71 76 113
25 84 128 169 209 121 55 35 24 44 77 85 136
26 97 107 182 185 97 59 37 21 44 79 100 107
27 113 91 206 192 92 51 37 19 56 78 112 107
28 92 86 219 186 79 71 41 88 52 95 99 95
29 73 103 239 179 100 76 54 37 49 97 106 89
30 68   271 160 108 104 53 33 54 102 104 89
31 74   290   104   39 24   75   82