ASSABET RIVER AT MAYNARD, MA
USGS 01097000 · Massachusetts · reports discharge (live), gauge height
Reading ASSABET RIVER AT MAYNARD, MA…
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USGS 01097000 · Massachusetts · 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, 10:15 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, 11:15 PM EDT to Nov 5, 10:15 PM EST; ranging 48.3 to 70.4 ft³/s; latest 66.8 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, 10:15 PM EST | 66.8 | 1.84 | 51–154 |
| Nov 5, 9:15 PM EST | 66.8 | 1.84 | 51–154 |
| Nov 5, 8:15 PM EST | 66.8 | 1.84 | 51–154 |
| Nov 5, 7:15 PM EST | 66.8 | 1.84 | 51–154 |
| Nov 5, 6:15 PM EST | 66.8 | 1.84 | 51–154 |
| Nov 5, 5:15 PM EST | 68 | 1.85 | 51–154 |
| Nov 5, 4:15 PM EST | 68 | 1.85 | 51–154 |
| Nov 5, 3:15 PM EST | 68 | 1.85 | 51–154 |
| Nov 5, 2:15 PM EST | 69.2 | 1.86 | 51–154 |
| Nov 5, 1:15 PM EST | 70.4 | 1.87 | 51–154 |
| Nov 5, 12:15 PM EST | 70.4 | 1.87 | 51–154 |
| Nov 5, 11:15 AM EST | 69.2 | 1.86 | 51–154 |
| Nov 5, 10:15 AM EST | 70.4 | 1.87 | 51–154 |
| Nov 5, 9:15 AM EST | 69.2 | 1.86 | 51–154 |
| Nov 5, 8:15 AM EST | 68 | 1.85 | 51–154 |
| Nov 5, 7:15 AM EST | 69.2 | 1.86 | 51–154 |
| Nov 5, 6:15 AM EST | 69.2 | 1.86 | 51–154 |
| Nov 5, 5:15 AM EST | 69.2 | 1.86 | 51–154 |
| Nov 5, 4:15 AM EST | 69.2 | 1.86 | 51–154 |
| Nov 5, 3:15 AM EST | 68 | 1.85 | 51–154 |
| Nov 5, 2:15 AM EST | 69.2 | 1.86 | 51–154 |
| Nov 5, 1:15 AM EST | 68 | 1.85 | 51–154 |
| Nov 5, 12:15 AM EST | 68 | 1.85 | 51–154 |
| Nov 4, 11:15 PM EST | 68 | 1.85 | 53–157 |
| Nov 4, 10:15 PM EST | 66.8 | 1.84 | 53–157 |
| Nov 4, 9:15 PM EST | 66.8 | 1.84 | 53–157 |
| Nov 4, 8:15 PM EST | 66.8 | 1.84 | 53–157 |
| Nov 4, 7:15 PM EST | 65.6 | 1.83 | 53–157 |
| Nov 4, 6:15 PM EST | 64.4 | 1.82 | 53–157 |
| Nov 4, 5:15 PM EST | 64.4 | 1.82 | 53–157 |
| Nov 4, 4:15 PM EST | 64.4 | 1.82 | 53–157 |
| Nov 4, 3:15 PM EST | 63.2 | 1.81 | 53–157 |
| Nov 4, 2:15 PM EST | 63.2 | 1.81 | 53–157 |
| Nov 4, 1:15 PM EST | 64.4 | 1.82 | 53–157 |
| Nov 4, 12:15 PM EST | 64.4 | 1.82 | 53–157 |
| Nov 4, 11:15 AM EST | 63.2 | 1.81 | 53–157 |
| Nov 4, 10:15 AM EST | 63.2 | 1.81 | 53–157 |
| Nov 4, 9:15 AM EST | 62.1 | 1.8 | 53–157 |
| Nov 4, 8:15 AM EST | 62.1 | 1.8 | 53–157 |
| Nov 4, 7:15 AM EST | 63.2 | 1.81 | 53–157 |
| Nov 4, 6:15 AM EST | 62.1 | 1.8 | 53–157 |
| Nov 4, 5:15 AM EST | 62.1 | 1.8 | 53–157 |
| Nov 4, 4:15 AM EST | 63.2 | 1.81 | 53–157 |
| Nov 4, 3:15 AM EST | 62.1 | 1.8 | 53–157 |
| Nov 4, 2:15 AM EST | 63.2 | 1.81 | 53–157 |
| Nov 4, 1:15 AM EST | 62.1 | 1.8 | 53–157 |
| Nov 4, 12:15 AM EST | 62.1 | 1.8 | 53–157 |
| Nov 3, 11:15 PM EST | 62.1 | 1.8 | 52–175 |
| Nov 3, 10:15 PM EST | 61 | 1.79 | 52–175 |
| Nov 3, 9:15 PM EST | 61 | 1.79 | 52–175 |
| Nov 3, 8:15 PM EST | 61 | 1.79 | 52–175 |
| Nov 3, 7:15 PM EST | 61 | 1.79 | 52–175 |
| Nov 3, 6:15 PM EST | 59.8 | 1.78 | 52–175 |
| Nov 3, 5:15 PM EST | 58.7 | 1.77 | 52–175 |
| Nov 3, 4:15 PM EST | 59.8 | 1.78 | 52–175 |
| Nov 3, 3:15 PM EST | 59.8 | 1.78 | 52–175 |
| Nov 3, 2:15 PM EST | 59.8 | 1.78 | 52–175 |
| Nov 3, 1:15 PM EST | 59.8 | 1.78 | 52–175 |
| Nov 3, 12:15 PM EST | 58.7 | 1.77 | 52–175 |
| Nov 3, 11:15 AM EST | 57.6 | 1.76 | 52–175 |
| Nov 3, 10:15 AM EST | 57.6 | 1.76 | 52–175 |
| Nov 3, 9:15 AM EST | 57.6 | 1.76 | 52–175 |
| Nov 3, 8:15 AM EST | 57.6 | 1.76 | 52–175 |
| Nov 3, 7:15 AM EST | 57.6 | 1.76 | 52–175 |
| Nov 3, 6:15 AM EST | 57.6 | 1.76 | 52–175 |
| Nov 3, 5:15 AM EST | 57.6 | 1.76 | 52–175 |
| Nov 3, 4:15 AM EST | 57.6 | 1.76 | 52–175 |
| Nov 3, 3:15 AM EST | 58.7 | 1.77 | 52–175 |
| Nov 3, 2:15 AM EST | 57.6 | 1.76 | 52–175 |
| Nov 3, 1:15 AM EST | 57.6 | 1.76 | 52–175 |
| Nov 3, 12:15 AM EST | 57.6 | 1.76 | 52–175 |
| Nov 2, 11:15 PM EST | 57.6 | 1.76 | 50–176 |
| Nov 2, 10:15 PM EST | 57.6 | 1.76 | 50–176 |
| Nov 2, 9:15 PM EST | 56.6 | 1.75 | 50–176 |
| Nov 2, 8:15 PM EST | 56.6 | 1.75 | 50–176 |
| Nov 2, 7:15 PM EST | 56.6 | 1.75 | 50–176 |
| Nov 2, 6:15 PM EST | 56.6 | 1.75 | 50–176 |
| Nov 2, 5:15 PM EST | 56.6 | 1.75 | 50–176 |
| Nov 2, 4:15 PM EST | 57.6 | 1.76 | 50–176 |
| Nov 2, 3:15 PM EST | 58.7 | 1.77 | 50–176 |
| Nov 2, 2:15 PM EST | 58.7 | 1.77 | 50–176 |
| Nov 2, 1:15 PM EST | 58.7 | 1.77 | 50–176 |
| Nov 2, 12:15 PM EST | 58.7 | 1.77 | 50–176 |
| Nov 2, 11:15 AM EST | 57.6 | 1.76 | 50–176 |
| Nov 2, 10:15 AM EST | 56.6 | 1.75 | 50–176 |
| Nov 2, 9:15 AM EST | 56.6 | 1.75 | 50–176 |
| Nov 2, 8:15 AM EST | 57.7 | 1.76 | 50–176 |
| Nov 2, 7:15 AM EST | 57.7 | 1.76 | 50–176 |
| Nov 2, 6:15 AM EST | 56.6 | 1.75 | 50–176 |
| Nov 2, 5:15 AM EST | 56.7 | 1.75 | 50–176 |
| Nov 2, 4:15 AM EST | 57.8 | 1.76 | 50–176 |
| Nov 2, 3:15 AM EST | 57.8 | 1.76 | 50–176 |
| Nov 2, 2:15 AM EST | 56.8 | 1.75 | 50–176 |
| Nov 2, 1:15 AM EST | 56.8 | 1.75 | 50–176 |
| Nov 2, 12:15 AM EST | 55.8 | 1.74 | 50–176 |
| Nov 1, 11:15 PM EST | 54.8 | 1.73 | 46–162 |
| Nov 1, 10:15 PM EST | 55.9 | 1.74 | 46–162 |
| Nov 1, 9:15 PM EST | 55.9 | 1.74 | 46–162 |
| Nov 1, 8:15 PM EST | 55.9 | 1.74 | 46–162 |
| Nov 1, 7:15 PM EST | 54.9 | 1.73 | 46–162 |
| Nov 1, 6:15 PM EST | 54.9 | 1.73 | 46–162 |
| Nov 1, 5:15 PM EST | 56 | 1.75 | 46–162 |
| Nov 1, 4:15 PM EST | 55 | 1.74 | 46–162 |
| Nov 1, 3:15 PM EST | 56.1 | 1.75 | 46–162 |
| Nov 1, 2:15 PM EST | 56.1 | 1.75 | 46–162 |
| Nov 1, 1:15 PM EST | 56.2 | 1.75 | 46–162 |
| Nov 1, 12:15 PM EST | 54.1 | 1.73 | 46–162 |
| Nov 1, 11:15 AM EST | 55.2 | 1.74 | 46–162 |
| Nov 1, 10:15 AM EST | 54.2 | 1.73 | 46–162 |
| Nov 1, 9:15 AM EST | 53.2 | 1.72 | 46–162 |
| Nov 1, 8:15 AM EST | 55.3 | 1.74 | 46–162 |
| Nov 1, 7:15 AM EST | 54.3 | 1.73 | 46–162 |
| Nov 1, 6:15 AM EST | 54.3 | 1.73 | 46–162 |
| Nov 1, 5:15 AM EST | 54.3 | 1.73 | 46–162 |
| Nov 1, 4:15 AM EST | 54.4 | 1.73 | 46–162 |
| Nov 1, 3:15 AM EST | 53.4 | 1.72 | 46–162 |
| Nov 1, 2:15 AM EST | 55.5 | 1.74 | 46–162 |
| Nov 1, 1:15 AM EST | 53.4 | 1.72 | 46–162 |
| Nov 1, 1:15 AM EDT | 53.5 | 1.72 | 46–162 |
| Nov 1, 12:15 AM EDT | 53.5 | 1.72 | 46–162 |
| Oct 31, 11:15 PM EDT | 53.5 | 1.72 | 46–181 |
| Oct 31, 10:15 PM EDT | 53.6 | 1.72 | 46–181 |
| Oct 31, 9:15 PM EDT | 52.6 | 1.71 | 46–181 |
| Oct 31, 8:15 PM EDT | 52.6 | 1.71 | 46–181 |
| Oct 31, 7:15 PM EDT | 52.6 | 1.71 | 46–181 |
| Oct 31, 6:15 PM EDT | 52.7 | 1.71 | 46–181 |
| Oct 31, 5:15 PM EDT | 52.7 | 1.71 | 46–181 |
| Oct 31, 4:15 PM EDT | 51.7 | 1.7 | 46–181 |
| Oct 31, 3:15 PM EDT | 50.7 | 1.69 | 46–181 |
| Oct 31, 2:15 PM EDT | 51.8 | 1.7 | 46–181 |
| Oct 31, 1:15 PM EDT | 51.8 | 1.7 | 46–181 |
| Oct 31, 12:15 PM EDT | 50.8 | 1.69 | 46–181 |
| Oct 31, 11:15 AM EDT | 50.9 | 1.7 | 46–181 |
| Oct 31, 10:15 AM EDT | 50.9 | 1.7 | 46–181 |
| Oct 31, 9:15 AM EDT | 49.9 | 1.69 | 46–181 |
| Oct 31, 8:15 AM EDT | 50 | 1.69 | 46–181 |
| Oct 31, 7:15 AM EDT | 50 | 1.69 | 46–181 |
| Oct 31, 6:15 AM EDT | 49.1 | 1.68 | 46–181 |
| Oct 31, 5:15 AM EDT | 49.1 | 1.68 | 46–181 |
| Oct 31, 4:15 AM EDT | 50.1 | 1.69 | 46–181 |
| Oct 31, 3:15 AM EDT | 50.1 | 1.69 | 46–181 |
| Oct 31, 2:15 AM EDT | 50.2 | 1.69 | 46–181 |
| Oct 31, 1:15 AM EDT | 49.2 | 1.68 | 46–181 |
| Oct 31, 12:15 AM EDT | 48.3 | 1.67 | 46–181 |
| Oct 30, 11:15 PM EDT | 49.3 | 1.68 | 48–179 |
| Oct 30, 10:15 PM EDT | 48.3 | 1.67 | 48–179 |
| Oct 30, 9:15 PM EDT | 49.3 | 1.68 | 48–179 |
| Oct 30, 8:15 PM EDT | 48.4 | 1.67 | 48–179 |
| Oct 30, 7:15 PM EDT | 51.4 | 1.7 | 48–179 |
| Oct 30, 6:15 PM EDT | 52.5 | 1.71 | 48–179 |
| Oct 30, 5:15 PM EDT | 53.5 | 1.72 | 48–179 |
| Oct 30, 4:15 PM EDT | 52.5 | 1.71 | 48–179 |
| Oct 30, 3:15 PM EDT | 53.6 | 1.72 | 48–179 |
| Oct 30, 2:15 PM EDT | 52.6 | 1.71 | 48–179 |
| Oct 30, 1:15 PM EDT | 53.7 | 1.72 | 48–179 |
| Oct 30, 12:15 PM EDT | 53.7 | 1.72 | 48–179 |
| Oct 30, 11:15 AM EDT | 52.7 | 1.71 | 48–179 |
| Oct 30, 10:15 AM EDT | 52.7 | 1.71 | 48–179 |
| Oct 30, 9:15 AM EDT | 51.7 | 1.7 | 48–179 |
| Oct 30, 8:15 AM EDT | 51.8 | 1.7 | 48–179 |
| Oct 30, 7:15 AM EDT | 51.8 | 1.7 | 48–179 |
| Oct 30, 6:15 AM EDT | 51.8 | 1.7 | 48–179 |
| Oct 30, 5:15 AM EDT | 52.9 | 1.72 | 48–179 |
| Oct 30, 4:15 AM EDT | 52.9 | 1.72 | 48–179 |
| Oct 30, 3:15 AM EDT | 51.9 | 1.71 | 48–179 |
| Oct 30, 2:15 AM EDT | 53 | 1.72 | 48–179 |
| Oct 30, 1:15 AM EDT | 54.1 | 1.73 | 48–179 |
| Oct 30, 12:15 AM EDT | 53.1 | 1.72 | 48–179 |
| Oct 29, 11:15 PM EDT | 53.1 | 1.72 | 46–163 |
Map of USGS gauge 01097000 and the river around it
Where ASSABET RIVER AT MAYNARD, MA sits.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer. MassWildlife publishes no water-temperature line for trout anglers that we found. The lines below are the National Park Service's, federal guidance, not a Massachusetts rule: 68°F.
Species list not on file for this gauge. Check the Massachusetts Division of Marine Fisheries / MassWildlife: Massachusetts trout stocking report · Massachusetts recreational saltwater fishing regulations.
Normal for Nov 5: 51–154 ft³/s (middle half of 85 years of record). Now: 66.8 ft³/s, normal.
Normal for this date. 66.8 ft³/s is between the 25th and 75th percentiles of daily mean flow for Nov 5 at this gauge over 85 years of record (1942–2026): 10th 33, 25th 51, median 101, 75th 154, 90th 342 ft³/s.
Daily means on record for Nov 5: lowest 14 ft³/s, highest 998 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 (+0% 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.
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)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.
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 1.84 ft stage, 67 ft³/s at Nov 5, 9:15 PM EST (NWS gauge MAYM3; its stage datum can differ from the USGS gauge height).
NWS river forecast forecast issued Nov 5, 10:32 AM EST. Highest point: 2.3 ft, 130 ft³/s on Nov 8, 7:00 AM EST (Below NWS action stage).
| Day | Stage | Flow |
|---|---|---|
| Thu, Nov 5 | 1.8 ft | 62 ft³/s |
| Fri, Nov 6 | 2 ft | 88 ft³/s |
| Sat, Nov 7 | 2.2 ft | 114 ft³/s |
| Sun, Nov 8 | 2.3 ft | 130 ft³/s |
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 10:53 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.