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USGS Daily Statistics for New York

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ALL DATA ARE EASTERN STANDARD TIME

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 01387500 Ramapo River near Mahwah NJ


Bergen County, New Jersey
Hydrologic Unit Code 02030103
Latitude  41°05'53", Longitude  74°09'46" NAD83
Drainage area 120  square miles
Contributing drainage area 120  square miles
Gage datum 253.10 feet above NGVD29
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00060, Discharge, cubic feet per second,
Day of
month
Mean of daily mean values for each day for 98 - 100 years of record in, ft3/s   (Calculation Period 1902-10-01 -> 2018-09-30)

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
1 262 229 330 509 288 256 146 89 83 128 144 290
2 273 237 324 501 269 263 119 86 124 114 156 289
3 273 289 327 511 259 223 102 91 102 107 183 264
4 262 281 369 486 270 200 100 75 93 104 194 271
5 253 246 372 564 262 193 93 78 80 103 172 276
6 263 221 388 536 271 185 95 81 89 110 160 292
7 271 229 443 501 271 197 105 97 110 106 156 297
8 288 254 412 435 251 197 96 82 114 114 219 310
9 273 230 420 418 254 168 91 78 109 233 257 293
10 264 225 375 450 262 156 85 98 84 160 225 273
11 249 256 438 391 293 143 76 99 75 121 209 286
12 246 265 478 361 305 137 69 91 107 133 218 329
13 240 257 474 364 282 152 94 108 111 164 212 323
14 238 268 516 346 271 154 124 102 109 146 215 316
15 254 265 466 364 286 158 114 91 115 175 212 285
16 231 262 427 454 263 146 99 95 147 186 199 268
17 215 249 425 458 293 143 81 108 198 133 221 270
18 222 253 448 386 261 136 79 97 155 135 220 271
19 249 257 463 341 260 142 92 151 141 151 207 249
20 252 274 464 322 234 137 90 123 128 199 237 258
21 257 278 470 303 216 125 89 92 127 184 258 355
22 265 309 579 307 197 147 106 102 139 165 244 334
23 266 307 546 313 188 156 143 93 106 151 253 272
24 286 316 494 303 212 147 127 123 98 155 215 283
25 372 373 473 301 227 129 91 103 113 163 208 283
26 369 373 439 294 218 113 76 85 105 156 236 270
27 327 342 446 288 203 107 81 82 121 168 243 279
28 320 339 465 294 207 121 82 231 125 202 250 255
29 285 288 479 303 273 115 72 183 123 192 303 253
30 251   479 284 261 146 75 113 120 171 290 268
31 240   521   224   91 84   151   286