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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 51 - 52 years of record in, ft3/s   (Calculation Period 1967-10-01 -> 2019-09-30)

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 82 281 158 97 77 39 21 50 70 114
2 87 80 87 275 166 88 72 45 21 48 90 127
3 80 94 86 260 159 90 65 33 23 40 94 108
4 74 89 95 283 160 90 58 35 24 48 69 100
5 80 86 89 313 133 77 53 35 24 41 75 96
6 82 81 107 275 145 110 45 32 42 50 84 89
7 72 74 110 253 127 114 44 39 45 46 72 93
8 83 68 112 232 116 91 41 43 30 55 92 89
9 95 61 120 218 126 72 39 37 31 90 122 82
10 79 63 113 260 126 74 37 48 26 50 99 89
11 81 81 134 265 132 76 32 44 32 44 89 96
12 84 75 128 241 131 75 33 49 30 56 102 106
13 76 65 143 257 138 91 42 41 30 48 95 107
14 86 63 145 254 134 106 44 41 27 52 88 105
15 81 65 145 256 119 80 36 37 26 74 90 98
16 72 70 137 293 117 79 49 35 31 60 86 89
17 65 65 169 284 122 74 41 29 36 68 97 108
18 78 71 165 249 118 63 39 32 47 59 83 97
19 93 70 176 238 124 70 30 32 39 59 74 82
20 81 92 172 244 123 62 29 27 34 97 102 73
21 72 85 172 233 117 52 28 30 31 91 96 127
22 69 89 201 226 97 51 30 30 30 68 85 109
23 72 86 171 241 89 62 36 25 39 77 87 93
24 80 103 157 249 115 60 36 23 37 73 77 114
25 83 130 168 214 124 56 33 22 44 78 86 115
26 95 109 181 189 100 60 36 20 45 78 101 100
27 114 86 206 195 94 52 37 18 57 73 114 105
28 92 84 218 189 81 73 42 91 54 95 100 93
29 74 102 234 180 102 80 54 37 51 99 108 89
30 69   269 156 110 109 49 34 55 101 104 88
31 75   293   105   38 24   65   81