Raritan River at Manville NJ
USGS 01400500 · New Jersey · reports discharge (live), gauge height, water temperature, dissolved oxygen, pH, turbidity, specific conductance
Reading Raritan River at Manville NJ…
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USGS 01400500 · New Jersey · reports discharge (live), gauge height, water temperature, dissolved oxygen, pH, turbidity, specific conductance
What the agencies suggest
Carry a pocket thermometer to monitor water temperatureNational Park Service
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 9:15 PM EST · provisional USGS data
Normal for Nov 5 Steady · 24 h Below NWS action stage
Discharge, last 7 days: 169 readings from Oct 29, 10:15 PM EDT to Nov 5, 9:15 PM EST; ranging 223 to 263 ft³/s; latest 243 ft³/s; shaded band: typical range (25th–75th percentile) for each date.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) | Water temp (°F) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|---|
| Nov 5, 9:15 PM EST | 243 | 4.13 | 58.5 | 210–628 |
| Nov 5, 8:15 PM EST | 243 | 4.13 | 58.5 | 210–628 |
| Nov 5, 7:15 PM EST | 243 | 4.13 | 58.3 | 210–628 |
| Nov 5, 6:15 PM EST | 243 | 4.13 | 58.3 | 210–628 |
| Nov 5, 5:15 PM EST | 243 | 4.13 | 58.1 | 210–628 |
| Nov 5, 4:15 PM EST | 243 | 4.13 | 58.1 | 210–628 |
| Nov 5, 3:15 PM EST | 243 | 4.13 | 57.9 | 210–628 |
| Nov 5, 2:15 PM EST | 243 | 4.13 | 57.7 | 210–628 |
| Nov 5, 1:15 PM EST | 243 | 4.13 | 57.4 | 210–628 |
| Nov 5, 12:15 PM EST | 243 | 4.13 | 57 | 210–628 |
| Nov 5, 11:15 AM EST | 243 | 4.13 | 56.5 | 210–628 |
| Nov 5, 10:15 AM EST | 243 | 4.13 | 56.1 | 210–628 |
| Nov 5, 9:15 AM EST | 243 | 4.13 | 55.8 | 210–628 |
| Nov 5, 8:15 AM EST | 238 | 4.12 | 55.4 | 210–628 |
| Nov 5, 7:15 AM EST | 238 | 4.12 | 55 | 210–628 |
| Nov 5, 6:15 AM EST | 238 | 4.12 | 54.9 | 210–628 |
| Nov 5, 5:15 AM EST | 238 | 4.12 | 54.9 | 210–628 |
| Nov 5, 4:15 AM EST | 238 | 4.12 | 54.9 | 210–628 |
| Nov 5, 3:15 AM EST | 238 | 4.12 | 55 | 210–628 |
| Nov 5, 2:15 AM EST | 238 | 4.12 | 55.4 | 210–628 |
| Nov 5, 1:15 AM EST | 238 | 4.12 | 55.6 | 210–628 |
| Nov 5, 12:15 AM EST | 238 | 4.12 | 55.9 | 210–628 |
| Nov 4, 11:15 PM EST | 238 | 4.12 | 55.9 | 196–615 |
| Nov 4, 10:15 PM EST | 238 | 4.12 | 56.1 | 196–615 |
| Nov 4, 9:15 PM EST | 238 | 4.12 | 56.1 | 196–615 |
| Nov 4, 8:15 PM EST | 238 | 4.12 | 56.1 | 196–615 |
| Nov 4, 7:15 PM EST | 238 | 4.12 | 55.9 | 196–615 |
| Nov 4, 6:15 PM EST | 238 | 4.12 | 55.9 | 196–615 |
| Nov 4, 5:15 PM EST | 238 | 4.12 | 55.9 | 196–615 |
| Nov 4, 4:15 PM EST | 238 | 4.12 | 56.3 | 196–615 |
| Nov 4, 3:15 PM EST | 238 | 4.12 | 56.5 | 196–615 |
| Nov 4, 2:15 PM EST | 243 | 4.13 | 56.3 | 196–615 |
| Nov 4, 1:15 PM EST | 243 | 4.13 | 56.1 | 196–615 |
| Nov 4, 12:15 PM EST | 243 | 4.13 | 55.4 | 196–615 |
| Nov 4, 11:15 AM EST | 243 | 4.13 | 54.5 | 196–615 |
| Nov 4, 10:15 AM EST | 243 | 4.13 | 53.6 | 196–615 |
| Nov 4, 9:15 AM EST | 243 | 4.13 | 52.7 | 196–615 |
| Nov 4, 8:15 AM EST | 243 | 4.13 | 52 | 196–615 |
| Nov 4, 7:15 AM EST | 243 | 4.13 | 51.6 | 196–615 |
| Nov 4, 6:15 AM EST | 243 | 4.13 | 51.8 | 196–615 |
| Nov 4, 5:15 AM EST | 243 | 4.13 | 51.8 | 196–615 |
| Nov 4, 4:15 AM EST | 243 | 4.13 | 52.2 | 196–615 |
| Nov 4, 3:15 AM EST | 243 | 4.13 | 52.3 | 196–615 |
| Nov 4, 2:15 AM EST | 243 | 4.13 | 52.7 | 196–615 |
| Nov 4, 1:15 AM EST | 243 | 4.13 | 53.1 | 196–615 |
| Nov 4, 12:15 AM EST | 243 | 4.13 | 53.4 | 196–615 |
| Nov 3, 11:15 PM EST | 238 | 4.12 | 53.6 | 208–699 |
| Nov 3, 10:15 PM EST | 238 | 4.12 | 53.8 | 208–699 |
| Nov 3, 9:15 PM EST | 238 | 4.12 | 53.8 | 208–699 |
| Nov 3, 8:15 PM EST | 238 | 4.12 | 54 | 208–699 |
| Nov 3, 7:15 PM EST | 238 | 4.12 | 54 | 208–699 |
| Nov 3, 6:15 PM EST | 238 | 4.12 | 54 | 208–699 |
| Nov 3, 5:15 PM EST | 233 | 4.11 | 54 | 208–699 |
| Nov 3, 4:15 PM EST | 238 | 4.12 | 54 | 208–699 |
| Nov 3, 3:15 PM EST | 238 | 4.12 | 54.1 | 208–699 |
| Nov 3, 2:15 PM EST | 238 | 4.12 | 54.1 | 208–699 |
| Nov 3, 1:15 PM EST | 238 | 4.12 | 53.8 | 208–699 |
| Nov 3, 12:15 PM EST | 233 | 4.11 | 53.2 | 208–699 |
| Nov 3, 11:15 AM EST | 238 | 4.12 | 52.3 | 208–699 |
| Nov 3, 10:15 AM EST | 238 | 4.12 | 51.1 | 208–699 |
| Nov 3, 9:15 AM EST | 233 | 4.11 | 50.5 | 208–699 |
| Nov 3, 8:15 AM EST | 233 | 4.11 | 50.4 | 208–699 |
| Nov 3, 7:15 AM EST | 228 | 4.1 | 49.8 | 208–699 |
| Nov 3, 6:15 AM EST | 228 | 4.1 | 50 | 208–699 |
| Nov 3, 5:15 AM EST | 228 | 4.1 | 50.2 | 208–699 |
| Nov 3, 4:15 AM EST | 228 | 4.1 | 50.5 | 208–699 |
| Nov 3, 3:15 AM EST | 223 | 4.09 | 50.9 | 208–699 |
| Nov 3, 2:15 AM EST | 223 | 4.09 | 51.4 | 208–699 |
| Nov 3, 1:15 AM EST | 223 | 4.09 | 51.8 | 208–699 |
| Nov 3, 12:15 AM EST | 223 | 4.09 | 52.2 | 208–699 |
| Nov 2, 11:15 PM EST | 223 | 4.09 | 52.3 | 199–532 |
| Nov 2, 10:15 PM EST | 223 | 4.09 | 52.5 | 199–532 |
| Nov 2, 9:15 PM EST | 223 | 4.09 | 52.5 | 199–532 |
| Nov 2, 8:15 PM EST | 223 | 4.09 | 52.7 | 199–532 |
| Nov 2, 7:15 PM EST | 223 | 4.09 | 52.7 | 199–532 |
| Nov 2, 6:15 PM EST | 223 | 4.09 | 52.9 | 199–532 |
| Nov 2, 5:15 PM EST | 223 | 4.09 | 52.9 | 199–532 |
| Nov 2, 4:15 PM EST | 223 | 4.09 | 53.2 | 199–532 |
| Nov 2, 3:15 PM EST | 223 | 4.09 | 53.4 | 199–532 |
| Nov 2, 2:15 PM EST | 223 | 4.09 | 53.4 | 199–532 |
| Nov 2, 1:15 PM EST | 228 | 4.1 | 53.2 | 199–532 |
| Nov 2, 12:15 PM EST | 233 | 4.11 | 52.9 | 199–532 |
| Nov 2, 11:15 AM EST | 233 | 4.11 | 52.2 | 199–532 |
| Nov 2, 10:15 AM EST | 233 | 4.11 | 51.3 | 199–532 |
| Nov 2, 9:15 AM EST | 238 | 4.12 | 50.4 | 199–532 |
| Nov 2, 8:15 AM EST | 238 | 4.12 | 49.8 | 199–532 |
| Nov 2, 7:15 AM EST | 238 | 4.12 | 49.5 | 199–532 |
| Nov 2, 6:15 AM EST | 243 | 4.13 | 49.6 | 199–532 |
| Nov 2, 5:15 AM EST | 243 | 4.13 | 49.8 | 199–532 |
| Nov 2, 4:15 AM EST | 238 | 4.12 | 50.2 | 199–532 |
| Nov 2, 3:15 AM EST | 238 | 4.12 | 50.5 | 199–532 |
| Nov 2, 2:15 AM EST | 238 | 4.12 | 51.1 | 199–532 |
| Nov 2, 1:15 AM EST | 238 | 4.12 | 51.4 | 199–532 |
| Nov 2, 12:15 AM EST | 238 | 4.12 | 52 | 199–532 |
| Nov 1, 11:15 PM EST | 238 | 4.12 | 52.3 | 187–565 |
| Nov 1, 10:15 PM EST | 238 | 4.12 | 52.5 | 187–565 |
| Nov 1, 9:15 PM EST | 238 | 4.12 | 52.7 | 187–565 |
| Nov 1, 8:15 PM EST | 238 | 4.12 | 52.9 | 187–565 |
| Nov 1, 7:15 PM EST | 238 | 4.12 | 53.1 | 187–565 |
| Nov 1, 6:15 PM EST | 238 | 4.12 | 53.2 | 187–565 |
| Nov 1, 5:15 PM EST | 238 | 4.12 | 53.2 | 187–565 |
| Nov 1, 4:15 PM EST | 238 | 4.12 | 53.6 | 187–565 |
| Nov 1, 3:15 PM EST | 243 | 4.13 | 53.8 | 187–565 |
| Nov 1, 2:15 PM EST | 243 | 4.13 | 54 | 187–565 |
| Nov 1, 1:15 PM EST | 243 | 4.13 | 53.8 | 187–565 |
| Nov 1, 12:15 PM EST | 243 | 4.13 | 53.4 | 187–565 |
| Nov 1, 11:15 AM EST | 243 | 4.13 | 52.9 | 187–565 |
| Nov 1, 10:15 AM EST | 243 | 4.13 | 52.2 | 187–565 |
| Nov 1, 9:15 AM EST | 243 | 4.13 | 51.4 | 187–565 |
| Nov 1, 8:15 AM EST | 243 | 4.13 | 50.9 | 187–565 |
| Nov 1, 7:15 AM EST | 243 | 4.13 | 50.7 | 187–565 |
| Nov 1, 6:15 AM EST | 243 | 4.13 | 50.9 | 187–565 |
| Nov 1, 5:15 AM EST | 243 | 4.13 | 51.1 | 187–565 |
| Nov 1, 4:15 AM EST | 238 | 4.12 | 51.6 | 187–565 |
| Nov 1, 3:15 AM EST | 238 | 4.12 | 52 | 187–565 |
| Nov 1, 2:15 AM EST | 238 | 4.12 | 52.5 | 187–565 |
| Nov 1, 1:15 AM EST | 238 | 4.12 | 53.1 | 187–565 |
| Nov 1, 1:15 AM EDT | 238 | 4.12 | 53.6 | 187–565 |
| Nov 1, 12:15 AM EDT | 233 | 4.11 | 54 | 187–565 |
| Oct 31, 11:15 PM EDT | 233 | 4.11 | 54.3 | 185–603 |
| Oct 31, 10:15 PM EDT | 233 | 4.11 | 54.5 | 185–603 |
| Oct 31, 9:15 PM EDT | 233 | 4.11 | 54.7 | 185–603 |
| Oct 31, 8:15 PM EDT | 233 | 4.11 | 54.9 | 185–603 |
| Oct 31, 7:15 PM EDT | 228 | 4.1 | 55 | 185–603 |
| Oct 31, 6:15 PM EDT | 233 | 4.11 | 55.4 | 185–603 |
| Oct 31, 5:15 PM EDT | 233 | 4.11 | 55.6 | 185–603 |
| Oct 31, 4:15 PM EDT | 233 | 4.11 | 55.9 | 185–603 |
| Oct 31, 3:15 PM EDT | 233 | 4.11 | 56.3 | 185–603 |
| Oct 31, 2:15 PM EDT | 233 | 4.11 | 56.1 | 185–603 |
| Oct 31, 1:15 PM EDT | 233 | 4.11 | 55.8 | 185–603 |
| Oct 31, 12:15 PM EDT | 238 | 4.12 | 55.2 | 185–603 |
| Oct 31, 11:15 AM EDT | 238 | 4.12 | 54.3 | 185–603 |
| Oct 31, 10:15 AM EDT | 243 | 4.13 | 53.6 | 185–603 |
| Oct 31, 9:15 AM EDT | 243 | 4.13 | 52.9 | 185–603 |
| Oct 31, 8:15 AM EDT | 248 | 4.14 | 52.5 | 185–603 |
| Oct 31, 7:15 AM EDT | 248 | 4.14 | 52.7 | 185–603 |
| Oct 31, 6:15 AM EDT | 248 | 4.14 | 52.9 | 185–603 |
| Oct 31, 5:15 AM EDT | 248 | 4.14 | 53.2 | 185–603 |
| Oct 31, 4:15 AM EDT | 248 | 4.14 | 53.6 | 185–603 |
| Oct 31, 3:15 AM EDT | 248 | 4.14 | 54.1 | 185–603 |
| Oct 31, 2:15 AM EDT | 248 | 4.14 | 54.7 | 185–603 |
| Oct 31, 1:15 AM EDT | 253 | 4.15 | 55 | 185–603 |
| Oct 31, 12:15 AM EDT | 253 | 4.15 | 55.6 | 185–603 |
| Oct 30, 11:15 PM EDT | 248 | 4.14 | 55.9 | 181–636 |
| Oct 30, 10:15 PM EDT | 248 | 4.14 | 56.1 | 181–636 |
| Oct 30, 9:15 PM EDT | 248 | 4.14 | 56.3 | 181–636 |
| Oct 30, 8:15 PM EDT | 248 | 4.14 | 56.5 | 181–636 |
| Oct 30, 7:15 PM EDT | 248 | 4.14 | 56.7 | 181–636 |
| Oct 30, 6:15 PM EDT | 248 | 4.14 | 56.8 | 181–636 |
| Oct 30, 5:15 PM EDT | 248 | 4.14 | 57 | 181–636 |
| Oct 30, 4:15 PM EDT | 248 | 4.14 | 57.6 | 181–636 |
| Oct 30, 3:15 PM EDT | 253 | 4.15 | 57.6 | 181–636 |
| Oct 30, 2:15 PM EDT | 253 | 4.15 | 57.4 | 181–636 |
| Oct 30, 1:15 PM EDT | 253 | 4.15 | 56.7 | 181–636 |
| Oct 30, 12:15 PM EDT | 253 | 4.15 | 56.3 | 181–636 |
| Oct 30, 11:15 AM EDT | 258 | 4.16 | 55.4 | 181–636 |
| Oct 30, 10:15 AM EDT | 258 | 4.16 | 54.3 | 181–636 |
| Oct 30, 9:15 AM EDT | 258 | 4.16 | 53.6 | 181–636 |
| Oct 30, 8:15 AM EDT | 263 | 4.17 | 53.2 | 181–636 |
| Oct 30, 7:15 AM EDT | 263 | 4.17 | 53.2 | 181–636 |
| Oct 30, 6:15 AM EDT | 263 | 4.17 | 53.2 | 181–636 |
| Oct 30, 5:15 AM EDT | 263 | 4.17 | 53.4 | 181–636 |
| Oct 30, 4:15 AM EDT | 258 | 4.16 | 53.6 | 181–636 |
| Oct 30, 3:15 AM EDT | 258 | 4.16 | 54 | 181–636 |
| Oct 30, 2:15 AM EDT | 258 | 4.16 | 54.3 | 181–636 |
| Oct 30, 1:15 AM EDT | 258 | 4.16 | 54.7 | 181–636 |
| Oct 30, 12:15 AM EDT | 258 | 4.16 | 55 | 181–636 |
| Oct 29, 11:15 PM EDT | 258 | 4.16 | 55.4 | 185–703 |
| Oct 29, 10:15 PM EDT | 258 | 4.16 | 55.6 | 185–703 |
Water temperature, last 7 days: 169 readings from Oct 29, 10:15 PM EDT to Nov 5, 9:15 PM EST; ranging 49.5 to 58.5 °F; latest 58.5 °F.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Water temperature (°F) |
|---|---|
| Nov 5, 9:15 PM EST | 58.5 |
| Nov 5, 8:15 PM EST | 58.5 |
| Nov 5, 7:15 PM EST | 58.3 |
| Nov 5, 6:15 PM EST | 58.3 |
| Nov 5, 5:15 PM EST | 58.1 |
| Nov 5, 4:15 PM EST | 58.1 |
| Nov 5, 3:15 PM EST | 57.9 |
| Nov 5, 2:15 PM EST | 57.7 |
| Nov 5, 1:15 PM EST | 57.4 |
| Nov 5, 12:15 PM EST | 57 |
| Nov 5, 11:15 AM EST | 56.5 |
| Nov 5, 10:15 AM EST | 56.1 |
| Nov 5, 9:15 AM EST | 55.8 |
| Nov 5, 8:15 AM EST | 55.4 |
| Nov 5, 7:15 AM EST | 55 |
| Nov 5, 6:15 AM EST | 54.9 |
| Nov 5, 5:15 AM EST | 54.9 |
| Nov 5, 4:15 AM EST | 54.9 |
| Nov 5, 3:15 AM EST | 55 |
| Nov 5, 2:15 AM EST | 55.4 |
| Nov 5, 1:15 AM EST | 55.6 |
| Nov 5, 12:15 AM EST | 55.9 |
| Nov 4, 11:15 PM EST | 55.9 |
| Nov 4, 10:15 PM EST | 56.1 |
| Nov 4, 9:15 PM EST | 56.1 |
| Nov 4, 8:15 PM EST | 56.1 |
| Nov 4, 7:15 PM EST | 55.9 |
| Nov 4, 6:15 PM EST | 55.9 |
| Nov 4, 5:15 PM EST | 55.9 |
| Nov 4, 4:15 PM EST | 56.3 |
| Nov 4, 3:15 PM EST | 56.5 |
| Nov 4, 2:15 PM EST | 56.3 |
| Nov 4, 1:15 PM EST | 56.1 |
| Nov 4, 12:15 PM EST | 55.4 |
| Nov 4, 11:15 AM EST | 54.5 |
| Nov 4, 10:15 AM EST | 53.6 |
| Nov 4, 9:15 AM EST | 52.7 |
| Nov 4, 8:15 AM EST | 52 |
| Nov 4, 7:15 AM EST | 51.6 |
| Nov 4, 6:15 AM EST | 51.8 |
| Nov 4, 5:15 AM EST | 51.8 |
| Nov 4, 4:15 AM EST | 52.2 |
| Nov 4, 3:15 AM EST | 52.3 |
| Nov 4, 2:15 AM EST | 52.7 |
| Nov 4, 1:15 AM EST | 53.1 |
| Nov 4, 12:15 AM EST | 53.4 |
| Nov 3, 11:15 PM EST | 53.6 |
| Nov 3, 10:15 PM EST | 53.8 |
| Nov 3, 9:15 PM EST | 53.8 |
| Nov 3, 8:15 PM EST | 54 |
| Nov 3, 7:15 PM EST | 54 |
| Nov 3, 6:15 PM EST | 54 |
| Nov 3, 5:15 PM EST | 54 |
| Nov 3, 4:15 PM EST | 54 |
| Nov 3, 3:15 PM EST | 54.1 |
| Nov 3, 2:15 PM EST | 54.1 |
| Nov 3, 1:15 PM EST | 53.8 |
| Nov 3, 12:15 PM EST | 53.2 |
| Nov 3, 11:15 AM EST | 52.3 |
| Nov 3, 10:15 AM EST | 51.1 |
| Nov 3, 9:15 AM EST | 50.5 |
| Nov 3, 8:15 AM EST | 50.4 |
| Nov 3, 7:15 AM EST | 49.8 |
| Nov 3, 6:15 AM EST | 50 |
| Nov 3, 5:15 AM EST | 50.2 |
| Nov 3, 4:15 AM EST | 50.5 |
| Nov 3, 3:15 AM EST | 50.9 |
| Nov 3, 2:15 AM EST | 51.4 |
| Nov 3, 1:15 AM EST | 51.8 |
| Nov 3, 12:15 AM EST | 52.2 |
| Nov 2, 11:15 PM EST | 52.3 |
| Nov 2, 10:15 PM EST | 52.5 |
| Nov 2, 9:15 PM EST | 52.5 |
| Nov 2, 8:15 PM EST | 52.7 |
| Nov 2, 7:15 PM EST | 52.7 |
| Nov 2, 6:15 PM EST | 52.9 |
| Nov 2, 5:15 PM EST | 52.9 |
| Nov 2, 4:15 PM EST | 53.2 |
| Nov 2, 3:15 PM EST | 53.4 |
| Nov 2, 2:15 PM EST | 53.4 |
| Nov 2, 1:15 PM EST | 53.2 |
| Nov 2, 12:15 PM EST | 52.9 |
| Nov 2, 11:15 AM EST | 52.2 |
| Nov 2, 10:15 AM EST | 51.3 |
| Nov 2, 9:15 AM EST | 50.4 |
| Nov 2, 8:15 AM EST | 49.8 |
| Nov 2, 7:15 AM EST | 49.5 |
| Nov 2, 6:15 AM EST | 49.6 |
| Nov 2, 5:15 AM EST | 49.8 |
| Nov 2, 4:15 AM EST | 50.2 |
| Nov 2, 3:15 AM EST | 50.5 |
| Nov 2, 2:15 AM EST | 51.1 |
| Nov 2, 1:15 AM EST | 51.4 |
| Nov 2, 12:15 AM EST | 52 |
| Nov 1, 11:15 PM EST | 52.3 |
| Nov 1, 10:15 PM EST | 52.5 |
| Nov 1, 9:15 PM EST | 52.7 |
| Nov 1, 8:15 PM EST | 52.9 |
| Nov 1, 7:15 PM EST | 53.1 |
| Nov 1, 6:15 PM EST | 53.2 |
| Nov 1, 5:15 PM EST | 53.2 |
| Nov 1, 4:15 PM EST | 53.6 |
| Nov 1, 3:15 PM EST | 53.8 |
| Nov 1, 2:15 PM EST | 54 |
| Nov 1, 1:15 PM EST | 53.8 |
| Nov 1, 12:15 PM EST | 53.4 |
| Nov 1, 11:15 AM EST | 52.9 |
| Nov 1, 10:15 AM EST | 52.2 |
| Nov 1, 9:15 AM EST | 51.4 |
| Nov 1, 8:15 AM EST | 50.9 |
| Nov 1, 7:15 AM EST | 50.7 |
| Nov 1, 6:15 AM EST | 50.9 |
| Nov 1, 5:15 AM EST | 51.1 |
| Nov 1, 4:15 AM EST | 51.6 |
| Nov 1, 3:15 AM EST | 52 |
| Nov 1, 2:15 AM EST | 52.5 |
| Nov 1, 1:15 AM EST | 53.1 |
| Nov 1, 1:15 AM EDT | 53.6 |
| Nov 1, 12:15 AM EDT | 54 |
| Oct 31, 11:15 PM EDT | 54.3 |
| Oct 31, 10:15 PM EDT | 54.5 |
| Oct 31, 9:15 PM EDT | 54.7 |
| Oct 31, 8:15 PM EDT | 54.9 |
| Oct 31, 7:15 PM EDT | 55 |
| Oct 31, 6:15 PM EDT | 55.4 |
| Oct 31, 5:15 PM EDT | 55.6 |
| Oct 31, 4:15 PM EDT | 55.9 |
| Oct 31, 3:15 PM EDT | 56.3 |
| Oct 31, 2:15 PM EDT | 56.1 |
| Oct 31, 1:15 PM EDT | 55.8 |
| Oct 31, 12:15 PM EDT | 55.2 |
| Oct 31, 11:15 AM EDT | 54.3 |
| Oct 31, 10:15 AM EDT | 53.6 |
| Oct 31, 9:15 AM EDT | 52.9 |
| Oct 31, 8:15 AM EDT | 52.5 |
| Oct 31, 7:15 AM EDT | 52.7 |
| Oct 31, 6:15 AM EDT | 52.9 |
| Oct 31, 5:15 AM EDT | 53.2 |
| Oct 31, 4:15 AM EDT | 53.6 |
| Oct 31, 3:15 AM EDT | 54.1 |
| Oct 31, 2:15 AM EDT | 54.7 |
| Oct 31, 1:15 AM EDT | 55 |
| Oct 31, 12:15 AM EDT | 55.6 |
| Oct 30, 11:15 PM EDT | 55.9 |
| Oct 30, 10:15 PM EDT | 56.1 |
| Oct 30, 9:15 PM EDT | 56.3 |
| Oct 30, 8:15 PM EDT | 56.5 |
| Oct 30, 7:15 PM EDT | 56.7 |
| Oct 30, 6:15 PM EDT | 56.8 |
| Oct 30, 5:15 PM EDT | 57 |
| Oct 30, 4:15 PM EDT | 57.6 |
| Oct 30, 3:15 PM EDT | 57.6 |
| Oct 30, 2:15 PM EDT | 57.4 |
| Oct 30, 1:15 PM EDT | 56.7 |
| Oct 30, 12:15 PM EDT | 56.3 |
| Oct 30, 11:15 AM EDT | 55.4 |
| Oct 30, 10:15 AM EDT | 54.3 |
| Oct 30, 9:15 AM EDT | 53.6 |
| Oct 30, 8:15 AM EDT | 53.2 |
| Oct 30, 7:15 AM EDT | 53.2 |
| Oct 30, 6:15 AM EDT | 53.2 |
| Oct 30, 5:15 AM EDT | 53.4 |
| Oct 30, 4:15 AM EDT | 53.6 |
| Oct 30, 3:15 AM EDT | 54 |
| Oct 30, 2:15 AM EDT | 54.3 |
| Oct 30, 1:15 AM EDT | 54.7 |
| Oct 30, 12:15 AM EDT | 55 |
| Oct 29, 11:15 PM EDT | 55.4 |
| Oct 29, 10:15 PM EDT | 55.6 |
Map of USGS gauge 01400500 and the river around it
Where Raritan River at Manville NJ sits, with 1 other gauge on the same river.
Federal guidance. New Jersey Fish and Wildlife publishes no water-temperature line for trout anglers that we found. The lines below are the National Park Service's, federal guidance, not a New Jersey rule, with New Jersey Fish and Wildlife's own figure added:
Under the federal 68°F line. Water 58.5°F now; the highest in the last 24 hours was 58.5°F. That is under the 68°F at which the National Park Service, at Grand Teton National Park, recommends anglers stop fishing in the afternoon (“cease fishing at 2 p.m. when water temperatures are likely to exceed 68°F”). Water warms through the afternoon, so check again later in the day: “Carry a pocket thermometer to monitor water temperature.”
Normal for Nov 5: 210–628 ft³/s (middle half of 108 years of record). Now: 243 ft³/s, normal.
Normal for this date. 243 ft³/s is between the 25th and 75th percentiles of daily mean flow for Nov 5 at this gauge over 108 years of record (1904–2025): 10th 133, 25th 210, median 352, 75th 628, 90th 1,070 ft³/s.
Daily means on record for Nov 5: lowest 60 ft³/s, highest 2,920 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Steady over 24 hours (+2.1% discharge). Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Species list not on file for this gauge. Check the New Jersey Fish & Wildlife: New Jersey trout stocking · New Jersey freshwater fishing regulations.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
Flood categories: action stage, minor, moderate and major flooding (National Weather Service)Cold water. Water 58.5°F. NWS: “Cold shock can be just as severe and dangerous from water temperatures of 50-60°F (10-15°C) as it is from water at 35°F (2°C).” “Always wear a life jacket in and around the water.”
Cold Water Hazards and Safety (National Weather Service)Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Dissolved oxygen 10.3 mg/L at Nov 5, 9:15 PM EST; 7-day range 8.9–16.6 mg/L
Enough oxygen for coldwater fish: 10.3 mg/L meets the 6.5 mg/L EPA sets for coldwater fish (other life stages; eggs and fry need a 8 mg/L minimum).
Quality Criteria for Water 1986 (“Gold Book”): dissolved oxygen, Table 1; pH (U.S. Environmental Protection Agency)pH 8 at Nov 5, 9:15 PM EST; 7-day range 7.6–9
Within EPA's freshwater range: pH 8 is within the 6.5–9 range EPA gives for freshwater aquatic life.
Quality Criteria for Water 1986 (“Gold Book”): dissolved oxygen, Table 1; pH (U.S. Environmental Protection Agency)Turbidity 1.6 FNU at Nov 5, 9:15 PM EST; 7-day range 1.2–2.1 FNU
Water clarity: Turbidity measures the relative clarity of water: higher means murkier. No agency publishes a fishing threshold for it; compare with this gauge's own recent readings.
Turbidity and Water (U.S. Geological Survey)Specific conductance 438 µS/cm at Nov 5, 9:15 PM EST; 7-day range 422–444 µS/cm
Dissolved ions: Specific conductance rises with the ions dissolved in the water. No fishing threshold is published for it; compare with this gauge's own recent readings.
Conductivity (Electrical Conductance) and Water (U.S. Geological Survey)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
NWS observed 4.32 ft stage, 359 ft³/s at Nov 5, 8:15 PM EST (NWS gauge MNVN4; its stage datum can differ from the USGS gauge height).
NWS river forecast forecast issued Nov 5, 10:18 AM EST. Highest point: 5 ft, 898 ft³/s on Nov 6, 1:00 PM EST (Below NWS action stage).
| Day | Stage | Flow |
|---|---|---|
| Thu, Nov 5 | 4.3 ft | 347 ft³/s |
| Fri, Nov 6 | 5 ft | 898 ft³/s |
| Sat, Nov 7 | 4.6 ft | 552 ft³/s |
| Sun, Nov 8 | 4.1 ft | 239 ft³/s |
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 9:37 PM EST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.