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USGS Daily Statistics for New Jersey

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ALL DATA ARE AT LOCAL 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 01388000 Ramapo River at Pompton Lakes NJ


Passaic County, New Jersey
Hydrologic Unit Code 02030103
Latitude  40°59'31", Longitude  74°16'48" NAD83
Drainage area 160  square miles
Gage datum 171.35 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 water year of record in, ft3/s   (Calculation Period 1921-10-01 -> 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
1 351 286 408 630 403 322 174 123 114 166 179 366
2 347 283 418 614 377 344 154 117 227 142 191 369
3 344 355 422 643 350 303 132 130 167 141 232 335
4 333 360 446 622 360 276 134 120 135 133 255 326
5 316 322 458 674 352 263 123 115 113 129 222 338
6 325 289 478 696 355 260 134 111 120 130 207 356
7 327 294 565 661 360 254 146 127 156 130 197 360
8 330 321 540 599 340 261 135 118 158 128 244 379
9 324 294 511 535 337 228 133 112 154 173 315 361
10 361 278 486 547 342 207 141 132 122 139 277 328
11 329 305 546 493 365 192 125 135 111 119 255 342
12 304 323 620 456 387 182 112 131 132 130 257 396
13 293 317 584 471 378 199 126 134 143 167 266 390
14 282 325 631 453 362 204 161 141 147 156 274 389
15 303 331 606 446 369 204 156 127 144 173 265 356
16 291 329 563 544 346 189 150 124 165 214 253 325
17 276 311 545 603 375 190 127 139 233 159 270 326
18 270 317 557 513 347 181 118 139 186 152 264 374
19 300 325 577 462 348 193 129 187 183 166 251 354
20 323 342 577 433 329 186 130 172 169 214 291 317
21 310 356 577 402 296 168 130 121 160 217 308 399
22 314 377 676 392 270 174 137 137 184 169 295 419
23 319 382 687 402 258 190 208 166 142 157 306 347
24 339 393 616 398 278 190 188 169 137 170 275 353
25 454 449 575 394 300 168 142 148 163 185 269 371
26 483 473 536 392 294 152 119 124 157 194 295 357
27 421 443 535 383 275 150 120 120 159 223 320 350
28 416 427 557 386 266 159 121 258 170 233 311 342
29 370 358 574 410 311 159 108 251 181 226 362 333
30 323   580 383 364 171 102 154 172 213 356 335
31 305   629   320   113 111   195   365