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USGS Daily Statistics for Connecticut

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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 01186500 STILL RIVER AT ROBERTSVILLE, CT


Litchfield County, Connecticut
Hydrologic Unit Code 01080207
Latitude  41°58'04.52", Longitude  73°02'00.40" NAD83
Drainage area 85.0  square miles
Gage datum 509.61 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 1948-10-01 -> 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
1 208 166 194 449 247 192 98 68 55 119 131 189
2 182 197 206 440 227 180 80 62 60 116 131 206
3 174 250 196 472 222 166 75 60 56 109 195 185
4 168 213 218 496 211 157 81 67 51 100 171 172
5 183 192 216 536 195 158 82 90 43 88 183 179
6 194 172 265 467 213 222 74 66 72 93 164 182
7 170 183 300 426 212 223 64 59 83 93 159 204
8 170 169 260 376 195 187 57 50 79 97 163 199
9 202 154 275 336 200 157 53 62 65 132 184 196
10 186 152 256 379 202 148 55 91 53 113 163 208
11 193 199 288 358 224 131 53 81 66 96 162 213
12 196 191 278 322 238 130 48 80 68 102 172 223
13 192 188 290 339 245 141 58 81 64 93 167 218
14 200 187 315 341 219 170 76 85 58 97 160 232
15 190 184 299 321 199 160 66 72 54 194 161 216
16 188 191 289 433 204 146 76 58 63 210 150 187
17 167 177 277 428 206 128 59 56 80 161 172 172
18 186 181 274 346 191 114 53 105 87 129 154 182
19 193 178 289 307 196 111 45 412 92 127 131 176
20 187 206 328 315 201 93 50 103 83 196 154 157
21 177 211 329 282 187 97 63 62 72 169 182 253
22 175 216 392 258 160 97 61 58 78 134 170 222
23 190 203 353 273 150 100 57 55 77 121 173 182
24 210 228 320 274 179 107 66 50 91 150 151 199
25 263 272 319 259 198 91 56 41 108 138 170 203
26 260 256 323 240 175 87 55 38 123 134 204 195
27 277 223 362 256 157 77 67 38 151 121 206 197
28 259 209 342 247 134 87 71 126 134 139 190 186
29 204 229 385 262 157 86 68 80 145 134 193 175
30 179   432 249 193 111 73 62 130 152 186 187
31 162   476   183   64 53   148   270