WILLIMANTIC RIVER AT MERROW RD. NEAR MERROW, CT
USGS 01119382 · Connecticut · reports discharge (live), gauge height
Reading WILLIMANTIC RIVER AT MERROW RD. NEAR MERROW, CT…
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USGS 01119382 · Connecticut · reports discharge (live), gauge height
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
Discharge, last 7 days: 169 readings from Oct 29, 10:15 PM EDT to Nov 5, 9:15 PM EST; ranging 30 to 75.1 ft³/s; latest 66.1 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) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|
| Nov 5, 9:15 PM EST | 66.1 | 1.31 | 32–163 |
| Nov 5, 8:15 PM EST | 64.4 | 1.3 | 32–163 |
| Nov 5, 7:15 PM EST | 62.7 | 1.29 | 32–163 |
| Nov 5, 6:15 PM EST | 61.1 | 1.28 | 32–163 |
| Nov 5, 5:15 PM EST | 61.1 | 1.28 | 32–163 |
| Nov 5, 4:15 PM EST | 59.5 | 1.27 | 32–163 |
| Nov 5, 3:15 PM EST | 59.5 | 1.27 | 32–163 |
| Nov 5, 2:15 PM EST | 59.5 | 1.27 | 32–163 |
| Nov 5, 1:15 PM EST | 61.1 | 1.28 | 32–163 |
| Nov 5, 12:15 PM EST | 61.1 | 1.28 | 32–163 |
| Nov 5, 11:15 AM EST | 62.7 | 1.29 | 32–163 |
| Nov 5, 10:15 AM EST | 62.7 | 1.29 | 32–163 |
| Nov 5, 9:15 AM EST | 62.7 | 1.29 | 32–163 |
| Nov 5, 8:15 AM EST | 62.7 | 1.29 | 32–163 |
| Nov 5, 7:15 AM EST | 64.4 | 1.3 | 32–163 |
| Nov 5, 6:15 AM EST | 64.4 | 1.3 | 32–163 |
| Nov 5, 5:15 AM EST | 64.4 | 1.3 | 32–163 |
| Nov 5, 4:15 AM EST | 64.4 | 1.3 | 32–163 |
| Nov 5, 3:15 AM EST | 64.4 | 1.3 | 32–163 |
| Nov 5, 2:15 AM EST | 62.7 | 1.29 | 32–163 |
| Nov 5, 1:15 AM EST | 62.7 | 1.29 | 32–163 |
| Nov 5, 12:15 AM EST | 62.7 | 1.29 | 32–163 |
| Nov 4, 11:15 PM EST | 62.7 | 1.29 | 31–188 |
| Nov 4, 10:15 PM EST | 62.7 | 1.29 | 31–188 |
| Nov 4, 9:15 PM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 8:15 PM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 7:15 PM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 6:15 PM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 5:15 PM EST | 59.5 | 1.27 | 31–188 |
| Nov 4, 4:15 PM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 3:15 PM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 2:15 PM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 1:15 PM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 12:15 PM EST | 59.5 | 1.27 | 31–188 |
| Nov 4, 11:15 AM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 10:15 AM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 9:15 AM EST | 59.5 | 1.27 | 31–188 |
| Nov 4, 8:15 AM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 7:15 AM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 6:15 AM EST | 61.1 | 1.28 | 31–188 |
| Nov 4, 5:15 AM EST | 62.7 | 1.29 | 31–188 |
| Nov 4, 4:15 AM EST | 62.7 | 1.29 | 31–188 |
| Nov 4, 3:15 AM EST | 62.7 | 1.29 | 31–188 |
| Nov 4, 2:15 AM EST | 66.1 | 1.31 | 31–188 |
| Nov 4, 1:15 AM EST | 69.6 | 1.33 | 31–188 |
| Nov 4, 12:15 AM EST | 75.1 | 1.36 | 31–188 |
| Nov 3, 11:15 PM EST | 75.1 | 1.36 | 32–226 |
| Nov 3, 10:15 PM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 9:15 PM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 8:15 PM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 7:15 PM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 6:15 PM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 5:15 PM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 4:15 PM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 3:15 PM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 2:15 PM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 1:15 PM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 12:15 PM EST | 41.1 | 1.14 | 32–226 |
| Nov 3, 11:15 AM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 10:15 AM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 9:15 AM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 8:15 AM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 7:15 AM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 6:15 AM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 5:15 AM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 4:15 AM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 3:15 AM EST | 41.1 | 1.14 | 32–226 |
| Nov 3, 2:15 AM EST | 41.1 | 1.14 | 32–226 |
| Nov 3, 1:15 AM EST | 39.9 | 1.13 | 32–226 |
| Nov 3, 12:15 AM EST | 39.9 | 1.13 | 32–226 |
| Nov 2, 11:15 PM EST | 41.1 | 1.14 | 37–212 |
| Nov 2, 10:15 PM EST | 41.1 | 1.14 | 37–212 |
| Nov 2, 9:15 PM EST | 41.1 | 1.14 | 37–212 |
| Nov 2, 8:15 PM EST | 42.3 | 1.15 | 37–212 |
| Nov 2, 7:15 PM EST | 42.3 | 1.15 | 37–212 |
| Nov 2, 6:15 PM EST | 43.6 | 1.16 | 37–212 |
| Nov 2, 5:15 PM EST | 43.6 | 1.16 | 37–212 |
| Nov 2, 4:15 PM EST | 44.9 | 1.17 | 37–212 |
| Nov 2, 3:15 PM EST | 44.9 | 1.17 | 37–212 |
| Nov 2, 2:15 PM EST | 46.2 | 1.18 | 37–212 |
| Nov 2, 1:15 PM EST | 46.2 | 1.18 | 37–212 |
| Nov 2, 12:15 PM EST | 47.6 | 1.19 | 37–212 |
| Nov 2, 11:15 AM EST | 47.6 | 1.19 | 37–212 |
| Nov 2, 10:15 AM EST | 44.9 | 1.17 | 37–212 |
| Nov 2, 9:15 AM EST | 41.1 | 1.14 | 37–212 |
| Nov 2, 8:15 AM EST | 38.7 | 1.12 | 37–212 |
| Nov 2, 7:15 AM EST | 38.7 | 1.12 | 37–212 |
| Nov 2, 6:15 AM EST | 38.7 | 1.12 | 37–212 |
| Nov 2, 5:15 AM EST | 38.7 | 1.12 | 37–212 |
| Nov 2, 4:15 AM EST | 38.7 | 1.12 | 37–212 |
| Nov 2, 3:15 AM EST | 38.7 | 1.12 | 37–212 |
| Nov 2, 2:15 AM EST | 38.7 | 1.12 | 37–212 |
| Nov 2, 1:15 AM EST | 38.7 | 1.12 | 37–212 |
| Nov 2, 12:15 AM EST | 37.5 | 1.11 | 37–212 |
| Nov 1, 11:15 PM EST | 38.7 | 1.12 | 42–265 |
| Nov 1, 10:15 PM EST | 37.5 | 1.11 | 42–265 |
| Nov 1, 9:15 PM EST | 38.7 | 1.12 | 42–265 |
| Nov 1, 8:15 PM EST | 38.7 | 1.12 | 42–265 |
| Nov 1, 7:15 PM EST | 38.7 | 1.12 | 42–265 |
| Nov 1, 6:15 PM EST | 39.9 | 1.13 | 42–265 |
| Nov 1, 5:15 PM EST | 39.9 | 1.13 | 42–265 |
| Nov 1, 4:15 PM EST | 41.1 | 1.14 | 42–265 |
| Nov 1, 3:15 PM EST | 39.9 | 1.13 | 42–265 |
| Nov 1, 2:15 PM EST | 39.9 | 1.13 | 42–265 |
| Nov 1, 1:15 PM EST | 39.9 | 1.13 | 42–265 |
| Nov 1, 12:15 PM EST | 41.1 | 1.14 | 42–265 |
| Nov 1, 11:15 AM EST | 39.9 | 1.13 | 42–265 |
| Nov 1, 10:15 AM EST | 39.9 | 1.13 | 42–265 |
| Nov 1, 9:15 AM EST | 41.1 | 1.14 | 42–265 |
| Nov 1, 8:15 AM EST | 41.1 | 1.14 | 42–265 |
| Nov 1, 7:15 AM EST | 41.1 | 1.14 | 42–265 |
| Nov 1, 6:15 AM EST | 41.1 | 1.14 | 42–265 |
| Nov 1, 5:15 AM EST | 42.3 | 1.15 | 42–265 |
| Nov 1, 4:15 AM EST | 42.3 | 1.15 | 42–265 |
| Nov 1, 3:15 AM EST | 42.3 | 1.15 | 42–265 |
| Nov 1, 2:15 AM EST | 42.3 | 1.15 | 42–265 |
| Nov 1, 1:15 AM EST | 42.3 | 1.15 | 42–265 |
| Nov 1, 1:15 AM EDT | 41.1 | 1.14 | 42–265 |
| Nov 1, 12:15 AM EDT | 39.9 | 1.13 | 42–265 |
| Oct 31, 11:15 PM EDT | 38.7 | 1.12 | 45–251 |
| Oct 31, 10:15 PM EDT | 38.7 | 1.12 | 45–251 |
| Oct 31, 9:15 PM EDT | 37.5 | 1.11 | 45–251 |
| Oct 31, 8:15 PM EDT | 37.5 | 1.11 | 45–251 |
| Oct 31, 7:15 PM EDT | 37.5 | 1.11 | 45–251 |
| Oct 31, 6:15 PM EDT | 37.5 | 1.11 | 45–251 |
| Oct 31, 5:15 PM EDT | 37.5 | 1.11 | 45–251 |
| Oct 31, 4:15 PM EDT | 37.5 | 1.11 | 45–251 |
| Oct 31, 3:15 PM EDT | 37.5 | 1.11 | 45–251 |
| Oct 31, 2:15 PM EDT | 36.4 | 1.1 | 45–251 |
| Oct 31, 1:15 PM EDT | 36.4 | 1.1 | 45–251 |
| Oct 31, 12:15 PM EDT | 35.3 | 1.09 | 45–251 |
| Oct 31, 11:15 AM EDT | 35.3 | 1.09 | 45–251 |
| Oct 31, 10:15 AM EDT | 35.3 | 1.09 | 45–251 |
| Oct 31, 9:15 AM EDT | 35.3 | 1.09 | 45–251 |
| Oct 31, 8:15 AM EDT | 36.4 | 1.1 | 45–251 |
| Oct 31, 7:15 AM EDT | 36.4 | 1.1 | 45–251 |
| Oct 31, 6:15 AM EDT | 36.4 | 1.1 | 45–251 |
| Oct 31, 5:15 AM EDT | 36.4 | 1.1 | 45–251 |
| Oct 31, 4:15 AM EDT | 35.3 | 1.09 | 45–251 |
| Oct 31, 3:15 AM EDT | 33.1 | 1.07 | 45–251 |
| Oct 31, 2:15 AM EDT | 31 | 1.05 | 45–251 |
| Oct 31, 1:15 AM EDT | 30 | 1.04 | 45–251 |
| Oct 31, 12:15 AM EDT | 30 | 1.04 | 45–251 |
| Oct 30, 11:15 PM EDT | 31 | 1.05 | 50–235 |
| Oct 30, 10:15 PM EDT | 31 | 1.05 | 50–235 |
| Oct 30, 9:15 PM EDT | 31 | 1.05 | 50–235 |
| Oct 30, 8:15 PM EDT | 31 | 1.05 | 50–235 |
| Oct 30, 7:15 PM EDT | 32 | 1.06 | 50–235 |
| Oct 30, 6:15 PM EDT | 32 | 1.06 | 50–235 |
| Oct 30, 5:15 PM EDT | 33.1 | 1.07 | 50–235 |
| Oct 30, 4:15 PM EDT | 33.1 | 1.07 | 50–235 |
| Oct 30, 3:15 PM EDT | 35.3 | 1.09 | 50–235 |
| Oct 30, 2:15 PM EDT | 36.4 | 1.1 | 50–235 |
| Oct 30, 1:15 PM EDT | 36.4 | 1.1 | 50–235 |
| Oct 30, 12:15 PM EDT | 37.5 | 1.11 | 50–235 |
| Oct 30, 11:15 AM EDT | 37.5 | 1.11 | 50–235 |
| Oct 30, 10:15 AM EDT | 37.5 | 1.11 | 50–235 |
| Oct 30, 9:15 AM EDT | 37.5 | 1.11 | 50–235 |
| Oct 30, 8:15 AM EDT | 36.4 | 1.1 | 50–235 |
| Oct 30, 7:15 AM EDT | 36.4 | 1.1 | 50–235 |
| Oct 30, 6:15 AM EDT | 36.4 | 1.1 | 50–235 |
| Oct 30, 5:15 AM EDT | 36.4 | 1.1 | 50–235 |
| Oct 30, 4:15 AM EDT | 36.4 | 1.1 | 50–235 |
| Oct 30, 3:15 AM EDT | 35.3 | 1.09 | 50–235 |
| Oct 30, 2:15 AM EDT | 35.3 | 1.09 | 50–235 |
| Oct 30, 1:15 AM EDT | 34.2 | 1.08 | 50–235 |
| Oct 30, 12:15 AM EDT | 34.2 | 1.08 | 50–235 |
| Oct 29, 11:15 PM EDT | 34.2 | 1.08 | 38–224 |
| Oct 29, 10:15 PM EDT | 35.3 | 1.09 | 38–224 |
Map of USGS gauge 01119382 and the river around it
Where WILLIMANTIC RIVER AT MERROW RD. NEAR MERROW, CT sits, with 1 other gauge on the same river and our water's map point.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer. Connecticut DEEP publishes no water-temperature line for trout anglers that we found. The lines below are the National Park Service's, federal guidance, not a Connecticut rule, with Connecticut DEEP's own figure added: 68°F.
This gauge is on our page for Willimantic River, but no agency page we read lists its species.
Normal for Nov 5: 32–163 ft³/s (middle half of 17 years of record). Now: 66.1 ft³/s, normal.
Normal for this date. 66.1 ft³/s is between the 25th and 75th percentiles of daily mean flow for Nov 5 at this gauge over 17 years of record (2010–2026): 10th 24, 25th 32, median 74, 75th 163, 90th 367 ft³/s.
Daily means on record for Nov 5: lowest 22.1 ft³/s, highest 488 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 (+8.2% 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.
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.
The National Weather Service has no flood-stage gauge here, so no official flood category is shown.
Checked Nov 5, 9:59 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.