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USGS Daily Statistics for New Jersey

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ALL DATA ARE AT LOCAL TIME


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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 water year of record in, ft3/s   (Calculation Period 1902-10-01 -> 2026-09-30)

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
1 274 228 327 503 312 262 140 87 87 132 151 300
2 280 235 331 492 283 261 114 85 164 116 159 295
3 277 283 335 504 264 220 99 92 119 118 214 268
4 265 279 371 491 271 199 98 86 99 111 213 272
5 257 246 372 554 264 190 91 88 83 108 177 276
6 268 221 389 522 275 180 95 85 90 111 164 290
7 273 229 444 490 273 191 103 100 108 109 160 296
8 286 252 410 445 252 191 94 84 111 116 216 306
9 275 229 414 418 262 164 100 83 110 224 250 289
10 300 222 384 441 274 154 110 102 88 155 222 275
11 267 251 436 382 294 141 92 100 78 119 206 300
12 251 260 469 362 304 134 77 91 106 132 216 339
13 250 254 463 373 283 148 97 107 111 161 215 324
14 245 264 501 353 273 148 129 101 109 144 217 320
15 255 261 456 365 286 152 121 91 112 170 211 289
16 234 261 424 459 263 140 107 94 141 181 201 275
17 218 251 419 461 292 137 91 105 187 133 220 281
18 222 255 439 385 259 132 89 99 153 133 217 322
19 247 256 454 347 256 141 96 149 141 145 205 286
20 253 270 452 327 234 136 91 120 126 191 233 272
21 254 275 459 305 214 122 89 91 123 178 252 372
22 260 304 561 306 196 142 105 105 133 159 243 353
23 263 302 538 314 190 150 141 119 105 145 249 296
24 293 312 496 305 210 141 126 134 103 150 216 302
25 384 368 468 300 222 124 94 106 125 157 223 311
26 381 369 432 293 212 110 84 86 121 168 245 291
27 332 338 435 289 198 108 84 82 126 193 258 286
28 324 335 453 292 204 120 82 219 129 210 257 277
29 292 285 466 305 267 113 71 173 136 194 301 270
30 256   466 292 258 140 74 109 131 180 292 278
31 241   506   232   88 82   159   293