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USGS Surface-Water Daily Statistics for New York

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 01387420 RAMAPO RIVER AT SUFFERN NY


Rockland County, New York
Hydrologic Unit Code 02030103
Latitude  41°07'06", Longitude  74°09'37" NAD83
Drainage area 93.0  square miles
Gage datum 263.29 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 1978-10-01 -> 2024-09-30)

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
1 213 175 233 399 275 184 68 66 54 105 127 282
2 224 179 252 377 229 176 68 62 136 100 124 313
3 206 214 250 405 213 146 64 73 92 106 189 274
4 214 224 266 412 211 144 64 65 60 102 157 266
5 235 204 261 539 191 137 56 60 50 98 123 244
6 213 180 261 422 238 143 59 53 88 96 125 222
7 190 167 344 306 227 175 79 76 120 83 112 226
8 177 156 296 292 189 175 71 64 138 100 114 239
9 168 144 324 273 180 137 87 50 126 150 146 203
10 159 140 292 338 193 118 100 57 87 95 141 204
11 175 149 373 280 243 103 73 60 62 74 143 236
12 193 166 334 239 274 99 60 66 53 111 193 302
13 194 187 348 247 231 112 87 58 62 169 174 319
14 194 193 412 237 215 134 112 56 80 142 151 307
15 200 187 358 255 180 123 93 62 61 138 150 256
16 179 193 314 414 180 108 90 74 123 103 153 232
17 167 190 291 459 272 109 77 57 188 93 192 250
18 179 200 300 333 229 106 66 51 145 86 182 262
19 227 210 350 275 228 104 56 45 129 96 150 215
20 268 223 327 253 197 86 45 38 97 191 172 189
21 216 249 349 233 163 83 42 51 77 174 216 239
22 177 242 514 236 143 93 44 85 65 123 185 250
23 170 225 435 241 136 102 52 121 66 100 214 242
24 223 251 354 238 152 100 56 78 76 117 195 301
25 277 298 319 236 143 84 47 55 86 112 194 331
26 294 278 289 229 127 69 54 48 93 133 203 275
27 276 243 309 226 127 67 61 41 93 164 248 258
28 266 238 343 214 117 82 53 250 114 214 259 233
29 215 283 383 230 148 72 43 169 125 210 282 214
30 201   384 231 215 68 38 83 112 184 265 216
31 193   394   186   48 54   143   217