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USGS Daily Statistics for the Nation

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 01096000 SQUANNACOOK RIVER NEAR WEST GROTON, MA


Middlesex County, Massachusetts
Hydrologic Unit Code 01070004
Latitude  42°38'03", Longitude  71°39'30" NAD27
Drainage area 65.9  square miles
Contributing drainage area 63.7  square miles
Gage datum 243.50 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 1949-10-01 -> 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
1 112 112 143 357 198 119 59 42 34 40 82 117
2 118 110 144 379 189 124 61 37 31 38 81 118
3 116 121 156 369 183 119 69 32 31 37 91 121
4 116 149 156 356 175 108 57 31 28 38 105 117
5 119 146 161 365 167 100 55 31 27 43 90 113
6 113 133 167 388 155 106 55 30 24 43 86 119
7 105 123 202 337 156 123 47 28 35 46 83 124
8 104 125 200 293 148 118 42 31 37 46 88 122
9 120 112 194 261 147 101 42 33 33 47 93 118
10 146 103 204 254 149 91 43 36 31 47 95 123
11 134 114 199 272 151 90 44 36 30 41 101 133
12 127 121 209 257 160 80 41 37 56 43 101 143
13 126 115 209 254 156 79 48 37 44 45 102 146
14 130 120 235 261 161 92 50 37 34 44 105 137
15 123 116 257 244 161 99 41 34 30 64 104 149
16 113 127 246 261 152 83 38 30 27 96 96 136
17 110 129 219 308 161 82 44 29 32 65 100 129
18 102 125 226 261 144 79 40 31 39 63 100 144
19 107 135 243 230 136 70 40 35 53 56 88 158
20 112 125 248 214 135 66 40 45 38 57 84 132
21 114 123 239 203 137 65 39 34 34 96 98 118
22 112 141 249 203 132 61 40 30 33 82 102 142
23 117 151 264 209 115 65 38 30 33 64 107 126
24 126 145 258 212 108 68 40 30 37 66 102 133
25 151 165 248 212 120 62 45 28 38 70 98 148
26 159 196 257 196 129 60 34 25 46 75 110 150
27 183 173 275 199 127 60 32 23 50 70 125 136
28 190 158 279 202 110 61 37 25 46 68 117 135
29 152 181 286 208 101 64 41 30 41 76 115 128
30 129   322 203 114 62 46 29 46 87 119 119
31 117   349   116   42 29   91   115