Summary
Total streamflow across the
Ashuelot River
was last observed at
231
cfs, and is expected to yield approximately
459
acre-ft of water today; about 7%
of normal.
River levels are low and may signify a drought.
Average streamflow for this time of year is
3,436 cfs,
with recent peaks last observed
on
2021-07-20 when daily discharge volume was observed at
11,380 cfs.
Maximum discharge along the river is currently at the
Ashuelot River At Hinsdale
reporting a streamflow rate of 225 cfs.
However, the streamgauge with the highest stage along the river is the
Ashuelot River Above The Branch
with a gauge stage of 64.94 ft.
This river is monitored from 5 different streamgauging stations along the Ashuelot River, the highest being situated at an altitude of 810 ft, the
Ashuelot River Near Gilsum.
River Details
| Last Updated | 2025-12-25 |
| Discharge Volume | 459 ACRE-FT |
| Streamflow |
231.3 cfs
-51.4 cfs (-18.18%) |
| Percent of Normal | 6.73% |
| Maximum |
11,380.0 cfs
2021-07-20 |
| Seasonal Avg | 3,436 cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Ashuelot River Near Gilsum
USGS 01157000 |
36 cfs | 2.28 ft | -20.13 | |||||
|
Ashuelot River Below Surry Mt Dam
USGS 01158000 |
36 cfs | 5.01 ft | 0 | |||||
|
Ashuelot River Above The Branch
USGS 01158110 |
21 cfs | 64.94 ft | -43.4 | |||||
|
Ashuelot River At West Swanzey
USGS 01160350 |
153 cfs | 5.62 ft | -17.8 | |||||
|
Ashuelot River At Hinsdale
USGS 01161000 |
225 cfs | 3.93 ft | 38.89 |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
The Ashuelot River is a tributary of the Connecticut River, approximately 64 miles (103 km) long, in southwestern New Hampshire in the United States. It drains a mountainous area of 425 square miles (1,101 km2), including much of the area known as the Monadnock Region. It is the longest tributary of the Connecticut River within New Hampshire.