Nf Stillaguamish River Near Arlington, WA

USGS Site No: 12167000Nf Stillaguamish River • Snohomish County, WA

Nf Stillaguamish River Near Arlington, WA on the Nf Stillaguamish River is currently at 554 cfs (Very Low — 8th percentile for this date) . Gage height: 2.47 ft.

Reading from

554
CFS Discharge
2.47
Gage Height (ft)
Very 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 692 Today: 554 cfs
25th Low threshold 1,030
50th (Median) Normal (median) 1,530
75th High threshold 2,170
95th Very High threshold 4,080

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.

6.6k 3.3k 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 554 2.47
May 27, 2026 577 2.50
May 26, 2026 621 2.57
May 25, 2026 608 2.55
May 24, 2026 651 2.61
May 23, 2026 705 2.68
May 22, 2026 771 2.77
May 21, 2026 853 2.86
May 20, 2026 976 3.00
May 19, 2026 1,140 3.16
May 18, 2026 1,400 3.40
May 17, 2026 1,980 3.83
May 16, 2026 3,290 4.53
May 15, 2026 2,430 4.11
Apr 20, 2026 1,050 3.08
Apr 19, 2026 998 3.03
Apr 18, 2026 1,030 3.06
Apr 17, 2026 1,130 3.16
Apr 16, 2026 1,350 3.36
Apr 15, 2026 2,040 3.86
Apr 14, 2026 1,230 3.24
Apr 13, 2026 896 2.91
Apr 12, 2026 859 2.87
Apr 11, 2026 886 2.90
Apr 10, 2026 890 2.91
Apr 9, 2026 937 2.96
Apr 8, 2026 1,040 3.07
Apr 7, 2026 1,200 3.23
Apr 6, 2026 1,190 3.22
Apr 5, 2026 1,190 3.21

Station Information

USGS Site No
12167000
State
WA
Coordinates
48.2615, -122.0476
Drainage Area
262 mi²
Datum (ft)
93.1
HUC Code
17110008
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
10.7 ft
Flood Stage
13.0 ft
Moderate Flood
14.0 ft
Major Flood
15.0 ft

Currently 10.53 ft below flood stage.

Recent Extremes

Max discharge
20,000 cfs
Dec 11, 2025
Min discharge
181 cfs
Sep 20, 2025
Days at flood stage
0

Computed from the local daily-values archive.