ISINGLASS R AT ROCHESTER NECK RD, NR DOVER, NH
USGS 01072870 · New Hampshire · reports discharge (live), gauge height, water temperature
Reading ISINGLASS R AT ROCHESTER NECK RD, NR DOVER, NH…
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USGS 01072870 · New Hampshire · reports discharge (live), gauge height, water temperature
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
Below normal for Nov 5 Steady · 24 h
Discharge, last 7 days: 169 readings from Oct 29, 10:15 PM EDT to Nov 5, 9:15 PM EST; ranging 60.9 to 108 ft³/s; latest 60.9 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 | 60.9 | 3.78 | 53.1 | 103–194 |
| Nov 5, 8:15 PM EST | 60.9 | 3.78 | 53.2 | 103–194 |
| Nov 5, 7:15 PM EST | 60.9 | 3.78 | 53.2 | 103–194 |
| Nov 5, 6:15 PM EST | 60.9 | 3.78 | 53.4 | 103–194 |
| Nov 5, 5:15 PM EST | 60.9 | 3.78 | 53.4 | 103–194 |
| Nov 5, 4:15 PM EST | 60.9 | 3.78 | 53.4 | 103–194 |
| Nov 5, 3:15 PM EST | 60.9 | 3.78 | 53.1 | 103–194 |
| Nov 5, 2:15 PM EST | 61.9 | 3.79 | 52.7 | 103–194 |
| Nov 5, 1:15 PM EST | 63 | 3.8 | 52.3 | 103–194 |
| Nov 5, 12:15 PM EST | 61.9 | 3.79 | 51.8 | 103–194 |
| Nov 5, 11:15 AM EST | 61.9 | 3.79 | 51.4 | 103–194 |
| Nov 5, 10:15 AM EST | 61.9 | 3.79 | 51.1 | 103–194 |
| Nov 5, 9:15 AM EST | 61.9 | 3.79 | 50.9 | 103–194 |
| Nov 5, 8:15 AM EST | 63 | 3.8 | 50.7 | 103–194 |
| Nov 5, 7:15 AM EST | 63 | 3.8 | 50.7 | 103–194 |
| Nov 5, 6:15 AM EST | 63 | 3.8 | 50.7 | 103–194 |
| Nov 5, 5:15 AM EST | 64.1 | 3.81 | 50.7 | 103–194 |
| Nov 5, 4:15 AM EST | 64.1 | 3.81 | 50.9 | 103–194 |
| Nov 5, 3:15 AM EST | 64.1 | 3.81 | 50.9 | 103–194 |
| Nov 5, 2:15 AM EST | 64.1 | 3.81 | 50.9 | 103–194 |
| Nov 5, 1:15 AM EST | 64.1 | 3.81 | 50.9 | 103–194 |
| Nov 5, 12:15 AM EST | 65.2 | 3.82 | 51.1 | 103–194 |
| Nov 4, 11:15 PM EST | 65.2 | 3.82 | 51.1 | 96–217 |
| Nov 4, 10:15 PM EST | 65.2 | 3.82 | 51.3 | 96–217 |
| Nov 4, 9:15 PM EST | 65.2 | 3.82 | 51.4 | 96–217 |
| Nov 4, 8:15 PM EST | 65.2 | 3.82 | 51.6 | 96–217 |
| Nov 4, 7:15 PM EST | 66.2 | 3.83 | 51.8 | 96–217 |
| Nov 4, 6:15 PM EST | 67 | 3.84 | 52 | 96–217 |
| Nov 4, 5:15 PM EST | 67 | 3.84 | 52 | 96–217 |
| Nov 4, 4:15 PM EST | 67 | 3.84 | 52 | 96–217 |
| Nov 4, 3:15 PM EST | 67 | 3.84 | 51.8 | 96–217 |
| Nov 4, 2:15 PM EST | 67.8 | 3.85 | 51.4 | 96–217 |
| Nov 4, 1:15 PM EST | 67 | 3.84 | 51.1 | 96–217 |
| Nov 4, 12:15 PM EST | 67 | 3.84 | 50.7 | 96–217 |
| Nov 4, 11:15 AM EST | 67 | 3.84 | 50.2 | 96–217 |
| Nov 4, 10:15 AM EST | 67 | 3.84 | 49.8 | 96–217 |
| Nov 4, 9:15 AM EST | 67 | 3.84 | 49.5 | 96–217 |
| Nov 4, 8:15 AM EST | 67 | 3.84 | 49.3 | 96–217 |
| Nov 4, 7:15 AM EST | 67.8 | 3.85 | 49.3 | 96–217 |
| Nov 4, 6:15 AM EST | 67.8 | 3.85 | 49.3 | 96–217 |
| Nov 4, 5:15 AM EST | 67.8 | 3.85 | 49.3 | 96–217 |
| Nov 4, 4:15 AM EST | 69.5 | 3.87 | 49.3 | 96–217 |
| Nov 4, 3:15 AM EST | 70.4 | 3.88 | 49.3 | 96–217 |
| Nov 4, 2:15 AM EST | 70.4 | 3.88 | 49.3 | 96–217 |
| Nov 4, 1:15 AM EST | 70.4 | 3.88 | 49.3 | 96–217 |
| Nov 4, 12:15 AM EST | 70.4 | 3.88 | 49.3 | 96–217 |
| Nov 3, 11:15 PM EST | 71.2 | 3.89 | 49.3 | 92–264 |
| Nov 3, 10:15 PM EST | 72.1 | 3.9 | 49.3 | 92–264 |
| Nov 3, 9:15 PM EST | 72.1 | 3.9 | 49.3 | 92–264 |
| Nov 3, 8:15 PM EST | 72.1 | 3.9 | 49.3 | 92–264 |
| Nov 3, 7:15 PM EST | 72.1 | 3.9 | 49.5 | 92–264 |
| Nov 3, 6:15 PM EST | 72.1 | 3.9 | 49.6 | 92–264 |
| Nov 3, 5:15 PM EST | 73 | 3.91 | 49.6 | 92–264 |
| Nov 3, 4:15 PM EST | 73 | 3.91 | 49.8 | 92–264 |
| Nov 3, 3:15 PM EST | 73 | 3.91 | 49.6 | 92–264 |
| Nov 3, 2:15 PM EST | 73 | 3.91 | 49.5 | 92–264 |
| Nov 3, 1:15 PM EST | 73.8 | 3.92 | 49.1 | 92–264 |
| Nov 3, 12:15 PM EST | 73.8 | 3.92 | 48.7 | 92–264 |
| Nov 3, 11:15 AM EST | 73.8 | 3.92 | 48.4 | 92–264 |
| Nov 3, 10:15 AM EST | 74.7 | 3.93 | 48 | 92–264 |
| Nov 3, 9:15 AM EST | 74.7 | 3.93 | 47.7 | 92–264 |
| Nov 3, 8:15 AM EST | 74.7 | 3.93 | 47.5 | 92–264 |
| Nov 3, 7:15 AM EST | 75.6 | 3.94 | 47.3 | 92–264 |
| Nov 3, 6:15 AM EST | 75.6 | 3.94 | 47.1 | 92–264 |
| Nov 3, 5:15 AM EST | 75.6 | 3.94 | 47.1 | 92–264 |
| Nov 3, 4:15 AM EST | 76.5 | 3.95 | 47.1 | 92–264 |
| Nov 3, 3:15 AM EST | 77.4 | 3.96 | 46.9 | 92–264 |
| Nov 3, 2:15 AM EST | 77.4 | 3.96 | 46.9 | 92–264 |
| Nov 3, 1:15 AM EST | 77.4 | 3.96 | 46.9 | 92–264 |
| Nov 3, 12:15 AM EST | 78.3 | 3.97 | 46.8 | 92–264 |
| Nov 2, 11:15 PM EST | 78.3 | 3.97 | 46.8 | 101–264 |
| Nov 2, 10:15 PM EST | 78.3 | 3.97 | 46.9 | 101–264 |
| Nov 2, 9:15 PM EST | 78.3 | 3.97 | 46.9 | 101–264 |
| Nov 2, 8:15 PM EST | 78.3 | 3.97 | 47.1 | 101–264 |
| Nov 2, 7:15 PM EST | 78.3 | 3.97 | 47.3 | 101–264 |
| Nov 2, 6:15 PM EST | 78.3 | 3.97 | 47.5 | 101–264 |
| Nov 2, 5:15 PM EST | 78.3 | 3.97 | 47.5 | 101–264 |
| Nov 2, 4:15 PM EST | 78.3 | 3.97 | 47.5 | 101–264 |
| Nov 2, 3:15 PM EST | 78.3 | 3.97 | 47.5 | 101–264 |
| Nov 2, 2:15 PM EST | 78.3 | 3.97 | 47.5 | 101–264 |
| Nov 2, 1:15 PM EST | 79.2 | 3.98 | 46.9 | 101–264 |
| Nov 2, 12:15 PM EST | 80.1 | 3.99 | 46.6 | 101–264 |
| Nov 2, 11:15 AM EST | 80.1 | 3.99 | 46.2 | 101–264 |
| Nov 2, 10:15 AM EST | 80.1 | 3.99 | 46 | 101–264 |
| Nov 2, 9:15 AM EST | 80.1 | 3.99 | 45.7 | 101–264 |
| Nov 2, 8:15 AM EST | 81 | 4 | 45.5 | 101–264 |
| Nov 2, 7:15 AM EST | 80.1 | 3.99 | 45.5 | 101–264 |
| Nov 2, 6:15 AM EST | 80.1 | 3.99 | 45.3 | 101–264 |
| Nov 2, 5:15 AM EST | 80.1 | 3.99 | 45.3 | 101–264 |
| Nov 2, 4:15 AM EST | 80.1 | 3.99 | 45.5 | 101–264 |
| Nov 2, 3:15 AM EST | 80.1 | 3.99 | 45.7 | 101–264 |
| Nov 2, 2:15 AM EST | 81 | 4 | 45.7 | 101–264 |
| Nov 2, 1:15 AM EST | 81 | 4 | 46 | 101–264 |
| Nov 2, 12:15 AM EST | 81.7 | 4.01 | 46.2 | 101–264 |
| Nov 1, 11:15 PM EST | 81.7 | 4.01 | 46.4 | 109–303 |
| Nov 1, 10:15 PM EST | 81.7 | 4.01 | 46.6 | 109–303 |
| Nov 1, 9:15 PM EST | 82.4 | 4.02 | 46.9 | 109–303 |
| Nov 1, 8:15 PM EST | 82.4 | 4.02 | 47.3 | 109–303 |
| Nov 1, 7:15 PM EST | 82.4 | 4.02 | 47.7 | 109–303 |
| Nov 1, 6:15 PM EST | 83.1 | 4.03 | 48 | 109–303 |
| Nov 1, 5:15 PM EST | 83.1 | 4.03 | 48.2 | 109–303 |
| Nov 1, 4:15 PM EST | 83.7 | 4.04 | 48.4 | 109–303 |
| Nov 1, 3:15 PM EST | 83.7 | 4.04 | 48.4 | 109–303 |
| Nov 1, 2:15 PM EST | 83.7 | 4.04 | 48.4 | 109–303 |
| Nov 1, 1:15 PM EST | 84.4 | 4.05 | 48.2 | 109–303 |
| Nov 1, 12:15 PM EST | 85.1 | 4.06 | 47.8 | 109–303 |
| Nov 1, 11:15 AM EST | 85.8 | 4.07 | 47.5 | 109–303 |
| Nov 1, 10:15 AM EST | 85.8 | 4.07 | 47.3 | 109–303 |
| Nov 1, 9:15 AM EST | 86.5 | 4.08 | 47.3 | 109–303 |
| Nov 1, 8:15 AM EST | 86.5 | 4.08 | 47.3 | 109–303 |
| Nov 1, 7:15 AM EST | 86.5 | 4.08 | 47.5 | 109–303 |
| Nov 1, 6:15 AM EST | 87.2 | 4.09 | 47.5 | 109–303 |
| Nov 1, 5:15 AM EST | 87.9 | 4.1 | 47.7 | 109–303 |
| Nov 1, 4:15 AM EST | 87.9 | 4.1 | 47.8 | 109–303 |
| Nov 1, 3:15 AM EST | 88.6 | 4.11 | 48 | 109–303 |
| Nov 1, 2:15 AM EST | 88.6 | 4.11 | 48.2 | 109–303 |
| Nov 1, 1:15 AM EST | 89.3 | 4.12 | 48.4 | 109–303 |
| Nov 1, 1:15 AM EDT | 89.3 | 4.12 | 48.7 | 109–303 |
| Nov 1, 12:15 AM EDT | 90 | 4.13 | 48.9 | 109–303 |
| Oct 31, 11:15 PM EDT | 90 | 4.13 | 49.1 | 101–350 |
| Oct 31, 10:15 PM EDT | 90.7 | 4.14 | 49.5 | 101–350 |
| Oct 31, 9:15 PM EDT | 90.7 | 4.14 | 49.6 | 101–350 |
| Oct 31, 8:15 PM EDT | 91.4 | 4.15 | 50.2 | 101–350 |
| Oct 31, 7:15 PM EDT | 91.4 | 4.15 | 50.4 | 101–350 |
| Oct 31, 6:15 PM EDT | 92.1 | 4.16 | 50.7 | 101–350 |
| Oct 31, 5:15 PM EDT | 92.8 | 4.17 | 50.7 | 101–350 |
| Oct 31, 4:15 PM EDT | 92.8 | 4.17 | 50.7 | 101–350 |
| Oct 31, 3:15 PM EDT | 94.2 | 4.19 | 50.7 | 101–350 |
| Oct 31, 2:15 PM EDT | 94.9 | 4.2 | 50.7 | 101–350 |
| Oct 31, 1:15 PM EDT | 95.7 | 4.21 | 50.5 | 101–350 |
| Oct 31, 12:15 PM EDT | 95.7 | 4.21 | 50.4 | 101–350 |
| Oct 31, 11:15 AM EDT | 96.4 | 4.22 | 50.2 | 101–350 |
| Oct 31, 10:15 AM EDT | 96.4 | 4.22 | 50 | 101–350 |
| Oct 31, 9:15 AM EDT | 97.1 | 4.23 | 50 | 101–350 |
| Oct 31, 8:15 AM EDT | 97.1 | 4.23 | 50.2 | 101–350 |
| Oct 31, 7:15 AM EDT | 97.1 | 4.23 | 50.2 | 101–350 |
| Oct 31, 6:15 AM EDT | 97.1 | 4.23 | 50.2 | 101–350 |
| Oct 31, 5:15 AM EDT | 97.8 | 4.24 | 50.2 | 101–350 |
| Oct 31, 4:15 AM EDT | 97.8 | 4.24 | 50 | 101–350 |
| Oct 31, 3:15 AM EDT | 97.8 | 4.24 | 50 | 101–350 |
| Oct 31, 2:15 AM EDT | 98.5 | 4.25 | 49.8 | 101–350 |
| Oct 31, 1:15 AM EDT | 99.2 | 4.26 | 49.8 | 101–350 |
| Oct 31, 12:15 AM EDT | 99.2 | 4.26 | 49.6 | 101–350 |
| Oct 30, 11:15 PM EDT | 100 | 4.27 | 49.6 | 98–355 |
| Oct 30, 10:15 PM EDT | 101 | 4.28 | 49.6 | 98–355 |
| Oct 30, 9:15 PM EDT | 101 | 4.28 | 49.6 | 98–355 |
| Oct 30, 8:15 PM EDT | 101 | 4.29 | 49.8 | 98–355 |
| Oct 30, 7:15 PM EDT | 102 | 4.3 | 50 | 98–355 |
| Oct 30, 6:15 PM EDT | 102 | 4.3 | 50.2 | 98–355 |
| Oct 30, 5:15 PM EDT | 103 | 4.31 | 50.2 | 98–355 |
| Oct 30, 4:15 PM EDT | 103 | 4.31 | 50.2 | 98–355 |
| Oct 30, 3:15 PM EDT | 104 | 4.32 | 50 | 98–355 |
| Oct 30, 2:15 PM EDT | 104 | 4.32 | 49.6 | 98–355 |
| Oct 30, 1:15 PM EDT | 104 | 4.33 | 49.3 | 98–355 |
| Oct 30, 12:15 PM EDT | 104 | 4.33 | 48.7 | 98–355 |
| Oct 30, 11:15 AM EDT | 104 | 4.33 | 48.4 | 98–355 |
| Oct 30, 10:15 AM EDT | 105 | 4.34 | 48 | 98–355 |
| Oct 30, 9:15 AM EDT | 105 | 4.34 | 47.8 | 98–355 |
| Oct 30, 8:15 AM EDT | 106 | 4.35 | 47.7 | 98–355 |
| Oct 30, 7:15 AM EDT | 106 | 4.35 | 47.7 | 98–355 |
| Oct 30, 6:15 AM EDT | 107 | 4.36 | 47.5 | 98–355 |
| Oct 30, 5:15 AM EDT | 107 | 4.36 | 47.5 | 98–355 |
| Oct 30, 4:15 AM EDT | 107 | 4.36 | 47.3 | 98–355 |
| Oct 30, 3:15 AM EDT | 107 | 4.37 | 47.1 | 98–355 |
| Oct 30, 2:15 AM EDT | 107 | 4.37 | 46.9 | 98–355 |
| Oct 30, 1:15 AM EDT | 107 | 4.37 | 46.8 | 98–355 |
| Oct 30, 12:15 AM EDT | 107 | 4.37 | 46.6 | 98–355 |
| Oct 29, 11:15 PM EDT | 107 | 4.37 | 46.6 | 101–229 |
| Oct 29, 10:15 PM EDT | 108 | 4.38 | 46.4 | 101–229 |
Water temperature, last 7 days: 169 readings from Oct 29, 10:15 PM EDT to Nov 5, 9:15 PM EST; ranging 45.3 to 53.4 °F; latest 53.1 °F.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Water temperature (°F) |
|---|---|
| Nov 5, 9:15 PM EST | 53.1 |
| Nov 5, 8:15 PM EST | 53.2 |
| Nov 5, 7:15 PM EST | 53.2 |
| Nov 5, 6:15 PM EST | 53.4 |
| Nov 5, 5:15 PM EST | 53.4 |
| Nov 5, 4:15 PM EST | 53.4 |
| Nov 5, 3:15 PM EST | 53.1 |
| Nov 5, 2:15 PM EST | 52.7 |
| Nov 5, 1:15 PM EST | 52.3 |
| Nov 5, 12:15 PM EST | 51.8 |
| Nov 5, 11:15 AM EST | 51.4 |
| Nov 5, 10:15 AM EST | 51.1 |
| Nov 5, 9:15 AM EST | 50.9 |
| Nov 5, 8:15 AM EST | 50.7 |
| Nov 5, 7:15 AM EST | 50.7 |
| Nov 5, 6:15 AM EST | 50.7 |
| Nov 5, 5:15 AM EST | 50.7 |
| Nov 5, 4:15 AM EST | 50.9 |
| Nov 5, 3:15 AM EST | 50.9 |
| Nov 5, 2:15 AM EST | 50.9 |
| Nov 5, 1:15 AM EST | 50.9 |
| Nov 5, 12:15 AM EST | 51.1 |
| Nov 4, 11:15 PM EST | 51.1 |
| Nov 4, 10:15 PM EST | 51.3 |
| Nov 4, 9:15 PM EST | 51.4 |
| Nov 4, 8:15 PM EST | 51.6 |
| Nov 4, 7:15 PM EST | 51.8 |
| Nov 4, 6:15 PM EST | 52 |
| Nov 4, 5:15 PM EST | 52 |
| Nov 4, 4:15 PM EST | 52 |
| Nov 4, 3:15 PM EST | 51.8 |
| Nov 4, 2:15 PM EST | 51.4 |
| Nov 4, 1:15 PM EST | 51.1 |
| Nov 4, 12:15 PM EST | 50.7 |
| Nov 4, 11:15 AM EST | 50.2 |
| Nov 4, 10:15 AM EST | 49.8 |
| Nov 4, 9:15 AM EST | 49.5 |
| Nov 4, 8:15 AM EST | 49.3 |
| Nov 4, 7:15 AM EST | 49.3 |
| Nov 4, 6:15 AM EST | 49.3 |
| Nov 4, 5:15 AM EST | 49.3 |
| Nov 4, 4:15 AM EST | 49.3 |
| Nov 4, 3:15 AM EST | 49.3 |
| Nov 4, 2:15 AM EST | 49.3 |
| Nov 4, 1:15 AM EST | 49.3 |
| Nov 4, 12:15 AM EST | 49.3 |
| Nov 3, 11:15 PM EST | 49.3 |
| Nov 3, 10:15 PM EST | 49.3 |
| Nov 3, 9:15 PM EST | 49.3 |
| Nov 3, 8:15 PM EST | 49.3 |
| Nov 3, 7:15 PM EST | 49.5 |
| Nov 3, 6:15 PM EST | 49.6 |
| Nov 3, 5:15 PM EST | 49.6 |
| Nov 3, 4:15 PM EST | 49.8 |
| Nov 3, 3:15 PM EST | 49.6 |
| Nov 3, 2:15 PM EST | 49.5 |
| Nov 3, 1:15 PM EST | 49.1 |
| Nov 3, 12:15 PM EST | 48.7 |
| Nov 3, 11:15 AM EST | 48.4 |
| Nov 3, 10:15 AM EST | 48 |
| Nov 3, 9:15 AM EST | 47.7 |
| Nov 3, 8:15 AM EST | 47.5 |
| Nov 3, 7:15 AM EST | 47.3 |
| Nov 3, 6:15 AM EST | 47.1 |
| Nov 3, 5:15 AM EST | 47.1 |
| Nov 3, 4:15 AM EST | 47.1 |
| Nov 3, 3:15 AM EST | 46.9 |
| Nov 3, 2:15 AM EST | 46.9 |
| Nov 3, 1:15 AM EST | 46.9 |
| Nov 3, 12:15 AM EST | 46.8 |
| Nov 2, 11:15 PM EST | 46.8 |
| Nov 2, 10:15 PM EST | 46.9 |
| Nov 2, 9:15 PM EST | 46.9 |
| Nov 2, 8:15 PM EST | 47.1 |
| Nov 2, 7:15 PM EST | 47.3 |
| Nov 2, 6:15 PM EST | 47.5 |
| Nov 2, 5:15 PM EST | 47.5 |
| Nov 2, 4:15 PM EST | 47.5 |
| Nov 2, 3:15 PM EST | 47.5 |
| Nov 2, 2:15 PM EST | 47.5 |
| Nov 2, 1:15 PM EST | 46.9 |
| Nov 2, 12:15 PM EST | 46.6 |
| Nov 2, 11:15 AM EST | 46.2 |
| Nov 2, 10:15 AM EST | 46 |
| Nov 2, 9:15 AM EST | 45.7 |
| Nov 2, 8:15 AM EST | 45.5 |
| Nov 2, 7:15 AM EST | 45.5 |
| Nov 2, 6:15 AM EST | 45.3 |
| Nov 2, 5:15 AM EST | 45.3 |
| Nov 2, 4:15 AM EST | 45.5 |
| Nov 2, 3:15 AM EST | 45.7 |
| Nov 2, 2:15 AM EST | 45.7 |
| Nov 2, 1:15 AM EST | 46 |
| Nov 2, 12:15 AM EST | 46.2 |
| Nov 1, 11:15 PM EST | 46.4 |
| Nov 1, 10:15 PM EST | 46.6 |
| Nov 1, 9:15 PM EST | 46.9 |
| Nov 1, 8:15 PM EST | 47.3 |
| Nov 1, 7:15 PM EST | 47.7 |
| Nov 1, 6:15 PM EST | 48 |
| Nov 1, 5:15 PM EST | 48.2 |
| Nov 1, 4:15 PM EST | 48.4 |
| Nov 1, 3:15 PM EST | 48.4 |
| Nov 1, 2:15 PM EST | 48.4 |
| Nov 1, 1:15 PM EST | 48.2 |
| Nov 1, 12:15 PM EST | 47.8 |
| Nov 1, 11:15 AM EST | 47.5 |
| Nov 1, 10:15 AM EST | 47.3 |
| Nov 1, 9:15 AM EST | 47.3 |
| Nov 1, 8:15 AM EST | 47.3 |
| Nov 1, 7:15 AM EST | 47.5 |
| Nov 1, 6:15 AM EST | 47.5 |
| Nov 1, 5:15 AM EST | 47.7 |
| Nov 1, 4:15 AM EST | 47.8 |
| Nov 1, 3:15 AM EST | 48 |
| Nov 1, 2:15 AM EST | 48.2 |
| Nov 1, 1:15 AM EST | 48.4 |
| Nov 1, 1:15 AM EDT | 48.7 |
| Nov 1, 12:15 AM EDT | 48.9 |
| Oct 31, 11:15 PM EDT | 49.1 |
| Oct 31, 10:15 PM EDT | 49.5 |
| Oct 31, 9:15 PM EDT | 49.6 |
| Oct 31, 8:15 PM EDT | 50.2 |
| Oct 31, 7:15 PM EDT | 50.4 |
| Oct 31, 6:15 PM EDT | 50.7 |
| Oct 31, 5:15 PM EDT | 50.7 |
| Oct 31, 4:15 PM EDT | 50.7 |
| Oct 31, 3:15 PM EDT | 50.7 |
| Oct 31, 2:15 PM EDT | 50.7 |
| Oct 31, 1:15 PM EDT | 50.5 |
| Oct 31, 12:15 PM EDT | 50.4 |
| Oct 31, 11:15 AM EDT | 50.2 |
| Oct 31, 10:15 AM EDT | 50 |
| Oct 31, 9:15 AM EDT | 50 |
| Oct 31, 8:15 AM EDT | 50.2 |
| Oct 31, 7:15 AM EDT | 50.2 |
| Oct 31, 6:15 AM EDT | 50.2 |
| Oct 31, 5:15 AM EDT | 50.2 |
| Oct 31, 4:15 AM EDT | 50 |
| Oct 31, 3:15 AM EDT | 50 |
| Oct 31, 2:15 AM EDT | 49.8 |
| Oct 31, 1:15 AM EDT | 49.8 |
| Oct 31, 12:15 AM EDT | 49.6 |
| Oct 30, 11:15 PM EDT | 49.6 |
| Oct 30, 10:15 PM EDT | 49.6 |
| Oct 30, 9:15 PM EDT | 49.6 |
| Oct 30, 8:15 PM EDT | 49.8 |
| Oct 30, 7:15 PM EDT | 50 |
| Oct 30, 6:15 PM EDT | 50.2 |
| Oct 30, 5:15 PM EDT | 50.2 |
| Oct 30, 4:15 PM EDT | 50.2 |
| Oct 30, 3:15 PM EDT | 50 |
| Oct 30, 2:15 PM EDT | 49.6 |
| Oct 30, 1:15 PM EDT | 49.3 |
| Oct 30, 12:15 PM EDT | 48.7 |
| Oct 30, 11:15 AM EDT | 48.4 |
| Oct 30, 10:15 AM EDT | 48 |
| Oct 30, 9:15 AM EDT | 47.8 |
| Oct 30, 8:15 AM EDT | 47.7 |
| Oct 30, 7:15 AM EDT | 47.7 |
| Oct 30, 6:15 AM EDT | 47.5 |
| Oct 30, 5:15 AM EDT | 47.5 |
| Oct 30, 4:15 AM EDT | 47.3 |
| Oct 30, 3:15 AM EDT | 47.1 |
| Oct 30, 2:15 AM EDT | 46.9 |
| Oct 30, 1:15 AM EDT | 46.8 |
| Oct 30, 12:15 AM EDT | 46.6 |
| Oct 29, 11:15 PM EDT | 46.6 |
| Oct 29, 10:15 PM EDT | 46.4 |
Map of USGS gauge 01072870 and the river around it
Where ISINGLASS R AT ROCHESTER NECK RD, NR DOVER, NH sits and our water's map point.
Federal guidance. New Hampshire Fish and Game Department 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 Hampshire rule:
Under the federal 68°F line. Water 53.1°F now; the highest in the last 24 hours was 53.4°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: 103–194 ft³/s (middle half of 23 years of record). Now: 60.9 ft³/s, below normal.
Below normal for this date. 60.9 ft³/s is between the 10th and 25th percentiles of daily mean flow for Nov 5 at this gauge over 23 years of record (2004–2026): 10th 58, 25th 103, median 174, 75th 194, 90th 242 ft³/s.
Daily means on record for Nov 5: lowest 34.4 ft³/s, highest 609 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 (−6.6% 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.
This gauge is on our page for Isinglass River, but no agency page we read lists its species.
Cold water. Water 53.1°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)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.
NWS observed 3.78 ft stage, 61 ft³/s at Nov 5, 8:15 PM EST (NWS gauge ISIN3; its stage datum can differ from the USGS gauge height).
NWS has not set flood categories for this gauge.
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 9:58 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.