Ramapo River at Mary H Harriman Mem Pk at Harriman NY

USGS Site No: 01387095 • Ramapo River • Orange County, NY

Ramapo River at Mary H Harriman Mem Pk at Harriman NY on the Ramapo River is currently at 4 cfs (Normal — 41th percentile for this date) . Gage height: 3.73 ft.

Reading from

Downstream on Ramapo River ↓
Ramapo River at Ramapo NY
4
CFS Discharge
3.73
Gage Height (ft)
Normal
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 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 0
25th Low threshold 2
50th (Median) Normal (median) 6 Today: 4 cfs
75th High threshold 17
95th Very High threshold 0

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.

37 18 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 5 —
May 27, 2026 8 —
May 26, 2026 15 —
May 25, 2026 26 —
May 24, 2026 31 —
May 23, 2026 9 —
May 22, 2026 6 —
May 21, 2026 10 —
May 20, 2026 9 —
May 19, 2026 6 —
May 18, 2026 6 —
May 17, 2026 8 —
May 16, 2026 15 —
May 15, 2026 13 —
Apr 21, 2026 10 —
Apr 20, 2026 9 —
Apr 19, 2026 8 —
Apr 18, 2026 7 —
Apr 17, 2026 8 —
Apr 16, 2026 8 —
Apr 15, 2026 9 —
Apr 14, 2026 6 —
Apr 13, 2026 5 —
Apr 12, 2026 5 —
Apr 11, 2026 6 —
Apr 10, 2026 7 —
Apr 9, 2026 7 —
Apr 8, 2026 8 —
Apr 7, 2026 10 —
Apr 6, 2026 12 —

Station Information

USGS Site No
01387095
State
NY
County
Orange County
Coordinates
41.3116, -74.1470
Drainage Area
10 mi²
Datum (ft)
522.2
HUC Code
02030103
View on USGS NWIS →

Recent Extremes

Max discharge
419 cfs
May 31, 2025
Min discharge
1 cfs
Sep 13, 2025

Computed from the local daily-values archive.

Nearby Gauges

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