Mill River Flow Today
As of October 7, 2026 at 3:15 AM, the Mill River is flowing at 30 cfs near Hamden, CT — 313% of normal for the date and down 9% in 24 hours. 3 of 3 USGS gauges reported in the last 3 days; flows range from 14 to 30 cfs. ❤ Favorite
Mill River map
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Every gauge, dam and paddle run on the river, one tap each:
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Mill River conditions today
Where the river is running versus normal, what’s rising or dropping, and what it means for a trip — built from the live USGS readings below.
At Hamden, the Mill River is running 30 cfs — 313% of normal, down 9% since yesterday. Along the river, 1 of 3 reporting gauges are near normal (the typical gauge is at 103% of normal).
In the last 24 hours the river is dropping at Fairfield (-15%).
Highest against normal: Hamden at 313%. Lowest: Northampton at 53%.
How the Mill River compares to normal
Every reporting gauge from the top of the river to the bottom: bar length is today’s flow, colour is percent of normal for the date.
Flow along the river, upstream to downstream
- Northampton205 ft 18 cfs53%
- Hamden130 ft 30 cfs313%
- Fairfield22 ft 14 cfs103%
Bar length uses a square-root scale so small headwater flows stay visible next to big downstream ones. Colour: <50% 50–90 90–110 110–150 150%+ of normal.
Where every gauge sits
One dot per Mill River streamgauge, placed by its own percent of normal. The line is the typical gauge (103%).
Mill River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | Elevation |
|---|---|---|---|---|---|
|
Mill River At Northampton MA
Oct 7, 3:00 AM · USGS 01171500 |
18 cfs | 53% | -3% | 5.58 ft | 205 ft |
|
Mill River Near Hamden CT
Oct 7, 3:15 AM · USGS 01196620 |
30 cfs | 313% | -9% | 1.44 ft | 130 ft |
|
Mill River Near Fairfield CT
Oct 7, 3:15 AM · USGS 01208925 |
14 cfs | 103% | -15% | 0.89 ft | 22 ft |
USGS provisional data. Readings are in each gauge’s local time; gauges silent for more than 3 days are marked “Last reported”. Tap any gauge for its hydrograph, forecast and history.
Dams & reservoirs on the Mill River
Releases from these dams shape the flow downstream. Tap one for its daily level and history.
Mill River streamflow over time
Daily total flow across every monitored gauge on the river.
Maximum streamflow by year
Mill River
The Mill River is a 15-mile-long river in western Massachusetts, originating in the town of Williamsburg and flowing into the Connecticut River in Northampton. It has a rich history dating back to the early 18th century, when it was used to power mills and factories along its banks. The river's hydrology has been heavily impacted by human activities, including the construction of multiple dams and reservoirs for industrial and municipal use. Notable reservoirs include the Leeds Reservoir, the Williamsburg Reservoir, and the Hatfield Reservoir. The river also provides recreational opportunities, including fishing, kayaking, and hiking, and supports local agriculture through irrigation. Despite ongoing challenges related to water management and pollution, the Mill River remains an important natural resource for the region.
Fishing near the Mill River
About the Mill River
How is the Mill River flowing right now?
As of October 7, 2026, the Mill River is flowing at 30 cfs near Hamden, CT, about 313% of normal for the date. Across its 3 USGS gauges, current flows range from 14 to 30 cfs. Every gauge’s live reading is in the table above.
Is the Mill River running high or low?
The typical gauge on the Mill River is at 103% of normal for the date. Above 100% means higher than the historical average for this calendar day; below 100% means lower. The profile above shows which reaches are high or low.
Where does the data come from?
Discharge and gage height are from the USGS National Water Information System; flood stages from the National Weather Service. The history chart sums every monitored gauge on the river.
Can I get alerts for a gauge?
Yes — open any gauge from the table, favorite it in the Snoflo app and set a flow threshold.