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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 01116000 SOUTH BRANCH PAWTUXET RIVER AT WASHINGTON, RI


Kent County, Rhode Island
Hydrologic Unit Code 01090004
Latitude  41°41'24", Longitude  71°33'59" NAD27
Drainage area 62.8  square miles
Contributing drainage area 62.8  square miles
Gage datum 216.94 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 1940-10-01 -> 2021-09-30)

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
1 167 186 187 245 174 144 79 55 52 70 96 141
2 172 186 191 244 174 140 76 53 58 71 94 146
3 177 191 196 247 162 139 73 53 59 71 96 152
4 176 194 204 241 158 134 59 57 61 69 96 154
5 171 188 203 241 162 125 61 62 58 70 97 147
6 168 180 202 247 162 131 67 60 56 72 100 147
7 169 181 212 232 156 138 71 58 56 73 99 154
8 165 176 210 224 150 140 73 57 65 72 97 160
9 169 171 211 222 158 131 71 59 64 74 101 163
10 166 168 210 218 160 119 70 61 64 75 103 164
11 163 174 205 215 154 119 66 63 65 70 100 163
12 161 164 204 212 152 116 65 70 69 63 109 165
13 165 163 201 206 154 116 66 72 65 66 112 171
14 161 167 221 218 152 126 72 65 67 73 114 168
15 163 162 235 216 149 129 72 65 66 81 114 170
16 169 165 225 215 148 113 69 65 64 91 116 177
17 169 174 221 217 151 107 68 64 70 89 121 172
18 168 177 235 215 150 110 64 61 68 85 125 172
19 169 173 233 214 152 108 61 64 63 83 120 180
20 171 175 230 207 146 109 61 65 61 84 114 181
21 173 177 227 199 139 104 63 65 60 87 115 180
22 171 173 240 195 136 99 61 62 60 83 116 186
23 174 173 255 191 135 97 61 56 64 81 116 180
24 176 172 244 189 135 92 66 54 65 79 118 172
25 192 175 227 200 140 93 69 54 66 81 125 161
26 206 180 218 198 147 90 65 56 69 84 127 172
27 212 185 208 194 149 84 62 55 71 84 133 179
28 203 190 205 194 145 82 61 54 73 87 132 176
29 191 167 213 189 131 82 56 52 72 89 137 176
30 185   248 184 113 82 56 51 72 97 137 177
31 187   284   130   55 52   98   173