Rex River Near Cedar Falls, WA

USGS Site No: 12115500 • Rex River • King County, WA

Rex River Near Cedar Falls, WA on the Rex River is currently at 29 cfs (Very Low — 10th percentile for this date) . Gage height: 3.37 ft.

Reading from

29
CFS Discharge
3.37
Gage Height (ft)
Very Low
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 29 Today: 29 cfs
25th Low threshold 52
50th (Median) Normal (median) 97
75th High threshold 162
95th Very High threshold 297

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.

481 240 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 24 3.31
May 27, 2026 26 3.34
May 26, 2026 29 3.37
May 25, 2026 30 3.38
May 24, 2026 33 3.42
May 23, 2026 38 3.46
May 22, 2026 43 3.50
May 21, 2026 49 3.55
May 20, 2026 57 3.61
May 19, 2026 66 3.67
May 18, 2026 76 3.74
May 17, 2026 94 3.83
May 16, 2026 106 3.89
May 15, 2026 62 3.64
Apr 20, 2026 104 3.88
Apr 19, 2026 96 3.85
Apr 18, 2026 88 3.81
Apr 17, 2026 90 3.82
Apr 16, 2026 96 3.85
Apr 15, 2026 133 4.00
Apr 14, 2026 89 3.80
Apr 13, 2026 75 3.74
Apr 12, 2026 63 3.66
Apr 11, 2026 66 3.68
Apr 10, 2026 67 3.68
Apr 9, 2026 69 3.70
Apr 8, 2026 77 3.75
Apr 7, 2026 88 3.81
Apr 6, 2026 83 3.78
Apr 5, 2026 69 3.70

Station Information

USGS Site No
12115500
State
WA
County
King County
Coordinates
47.3506, -121.6631
Drainage Area
13 mi²
Datum (ft)
1,727.6
HUC Code
17110012
View on USGS NWIS →

Recent Extremes

Max discharge
1,870 cfs
Dec 10, 2025
Min discharge
4 cfs
Oct 8, 2025

Computed from the local daily-values archive.

Nearby Gauges

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