Ashuelot River Below Surry Mount Dam, Near Keene, NH

USGS Site No: 01158000 • Ashuelot River • Cheshire County, NH

Ashuelot River Below Surry Mount Dam, Near Keene, NH on the Ashuelot River is currently at 116 cfs (Normal — 58th percentile for this date) . Gage height: 5.67 ft.

Reading from

↑ Upstream on Ashuelot River
Ashuelot River Near Gilsum, NH
Downstream on Ashuelot River ↓
Ashuelot River Above The Branch, at Keene, NH
116
CFS Discharge
5.67
Gage Height (ft)
Normal
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile Label CFS Threshold Today's Flow
10th Very Low threshold 15
25th Low threshold 32
50th (Median) Normal (median) 70
75th High threshold 220 Today: 116 cfs
95th Very High threshold 563

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

1.2k 621 0 cfs Apr 6 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 155 —
May 27, 2026 172 —
May 26, 2026 166 —
May 25, 2026 115 —
May 24, 2026 105 —
May 23, 2026 111 —
May 22, 2026 141 —
May 21, 2026 181 —
May 20, 2026 242 —
May 19, 2026 313 —
May 18, 2026 408 —
May 17, 2026 540 —
May 16, 2026 614 —
May 15, 2026 509 —
Apr 21, 2026 230 —
Apr 20, 2026 149 —
Apr 19, 2026 142 —
Apr 18, 2026 139 —
Apr 17, 2026 168 —
Apr 16, 2026 181 —
Apr 15, 2026 173 —
Apr 14, 2026 166 —
Apr 13, 2026 179 —
Apr 12, 2026 201 —
Apr 11, 2026 231 —
Apr 10, 2026 262 —
Apr 9, 2026 300 —
Apr 8, 2026 342 —
Apr 7, 2026 391 —
Apr 6, 2026 453 —

Station Information

USGS Site No
01158000
State
NH
County
Cheshire County
Coordinates
42.9948, -72.3112
Drainage Area
101 mi²
Datum (ft)
479.6
HUC Code
01080201
View on USGS NWIS →

Recent Extremes

Max discharge
1,120 cfs
Mar 19, 2026
Min discharge
1 cfs
Sep 22, 2025

Computed from the local daily-values archive.

Nearby Gauges

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