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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 432.26 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 50 - 51 years of record in, ft3/s   (Calculation Period 1967-10-01 -> 2018-09-30)

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 83 65 82 282 158 98 77 39 20 49 69 114
2 85 79 88 277 166 89 72 45 20 44 85 125
3 78 94 87 262 159 90 65 33 22 36 80 105
4 72 89 96 285 160 91 58 35 24 46 64 98
5 79 86 89 316 133 77 53 35 23 39 71 95
6 80 79 108 277 145 110 45 32 42 48 78 88
7 71 71 111 253 127 114 44 39 45 44 66 92
8 82 64 113 228 116 91 41 43 30 54 89 88
9 94 59 121 216 126 72 39 37 31 89 120 81
10 78 62 114 260 127 74 37 48 25 49 94 88
11 81 81 136 266 133 76 32 44 27 42 86 96
12 84 75 130 242 131 75 33 49 27 54 99 106
13 75 65 145 256 139 91 42 41 27 47 90 107
14 85 63 147 252 133 106 44 41 25 51 84 105
15 81 65 146 250 119 80 36 37 25 73 88 98
16 71 71 137 293 117 79 49 35 30 59 83 89
17 65 65 171 286 122 74 41 29 35 68 95 108
18 77 72 167 251 119 63 39 32 37 58 82 97
19 94 71 178 239 124 70 30 32 35 58 72 82
20 81 93 174 242 123 62 29 27 32 97 100 73
21 71 85 174 232 118 52 28 30 29 91 95 118
22 68 90 203 226 98 51 30 27 28 68 85 98
23 71 87 172 241 89 62 36 22 38 77 86 90
24 74 103 158 250 116 60 36 21 35 72 76 112
25 79 131 169 214 125 56 33 21 39 78 85 114
26 94 110 183 188 101 60 36 18 39 78 100 99
27 114 87 209 187 95 52 37 17 54 73 112 105
28 93 85 221 187 82 73 42 92 51 93 99 92
29 74 102 236 179 102 80 54 36 48 98 108 86
30 68   271 155 111 109 49 33 54 100 103 86
31 75   292   106   38 23   64   80