Boulder Creek Near Cedar Falls, WA

USGS Site No: 12115700 • Boulder Creek • King County, WA

Boulder Creek Near Cedar Falls, WA on the Boulder Creek is currently at 6 cfs (Normal — 26th percentile for this date) . Gage height: 1.53 ft.

Reading from

6
CFS Discharge
1.53
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 2
25th Low threshold 5
50th (Median) Normal (median) 14 Today: 6 cfs
75th High threshold 31
95th Very High threshold 68

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.

212 106 0 cfs Apr 3 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 4 1.47
May 27, 2026 5 1.51
May 26, 2026 6 1.55
May 25, 2026 6 1.55
May 24, 2026 7 1.59
May 23, 2026 9 1.63
May 22, 2026 10 1.68
May 21, 2026 12 1.73
May 20, 2026 15 1.79
May 19, 2026 19 1.87
May 18, 2026 22 1.92
May 17, 2026 25 1.96
May 16, 2026 26 1.98
May 15, 2026 14 1.76
Apr 20, 2026 26 2.03
Apr 19, 2026 25 2.00
Apr 18, 2026 21 1.95
Apr 17, 2026 21 1.94
Apr 14, 2026 18 1.88
Apr 13, 2026 15 1.83
Apr 12, 2026 11 1.76
Apr 11, 2026 13 1.79
Apr 10, 2026 13 1.80
Apr 9, 2026 14 1.82
Apr 8, 2026 17 1.88
Apr 7, 2026 19 1.92
Apr 6, 2026 20 1.93
Apr 5, 2026 19 1.92
Apr 4, 2026 19 1.92
Apr 3, 2026 20 1.93

Station Information

USGS Site No
12115700
State
WA
County
King County
Coordinates
47.3662, -121.6929
Drainage Area
5 mi²
Datum (ft)
1,662.2
HUC Code
17110012
View on USGS NWIS →

Recent Extremes

Max discharge
713 cfs
Dec 10, 2025
Min discharge
0 cfs
Oct 18, 2025

Computed from the local daily-values archive.

Nearby Gauges

Related