Hawlings River Near Sandy Spring, MD

USGS Site No: 01591700 • Hawlings River • Montgomery County, MD

Hawlings River Near Sandy Spring, MD on the Hawlings River is currently at 11 cfs (Low — 21th percentile for this date) . Gage height: 0.55 ft.

Reading from

11
CFS Discharge
0.55
Gage Height (ft)
Low
Flow Condition
Normal
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 7
25th Low threshold 12 Today: 11 cfs
50th (Median) Normal (median) 19
75th High threshold 28
95th Very High threshold 53

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.

403 201 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 16 —
May 27, 2026 20 —
May 26, 2026 20 —
May 25, 2026 34 —
May 24, 2026 185 —
May 23, 2026 71 —
May 22, 2026 14 —
May 21, 2026 13 —
May 20, 2026 8 —
May 19, 2026 7 —
May 18, 2026 8 —
May 17, 2026 8 —
May 16, 2026 8 —
May 15, 2026 9 —
Apr 21, 2026 14 —
Apr 20, 2026 14 —
Apr 19, 2026 14 —
Apr 18, 2026 10 —
Apr 17, 2026 10 —
Apr 16, 2026 11 —
Apr 15, 2026 11 —
Apr 14, 2026 11 —
Apr 13, 2026 12 —
Apr 12, 2026 12 —
Apr 11, 2026 12 —
Apr 10, 2026 13 —
Apr 9, 2026 13 —
Apr 8, 2026 13 —
Apr 7, 2026 15 —
Apr 6, 2026 19 —

Station Information

USGS Site No
01591700
State
MD
County
Montgomery County
Coordinates
39.1745, -77.0214
Drainage Area
27 mi²
Datum (ft)
302.7
HUC Code
020600060104
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
5.0 ft
Flood Stage
6.5 ft

Currently 5.95 ft below flood stage.

Recent Extremes

Max discharge
285 cfs
Jun 18, 2025
Min discharge
4 cfs
Oct 6, 2025
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges

Related