How high is the Snohomish River Near Monroe, WA right now?

The Snohomish River Near Monroe, WA is currently flowing at 5,510 cubic feet per second with a gage height of 2.48 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Snohomish River Near Monroe, WA normal for this time of year?

Current flow is classified as very low for June 11. Today's discharge is at the 9th percentile compared to the long-term historical record at this gauge.

Is the Snohomish River Near Monroe, WA at flood stage?

No — the gage height is 12.52 feet below the NWS flood-stage threshold of 15.0 feet.

What is the historical median flow for the Snohomish River Near Monroe, WA on June 11?

The long-term median discharge for this date is 11,500 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 6,430 to 23,000 cfs.

Where is the Snohomish River Near Monroe, WA stream gauge located?

The Snohomish River Near Monroe, WA stream gauge is operated by the USGS in Snohomish County, WA on the Snohomish River. USGS site number 12150800 (coordinates 47.8309, -122.0485).

Snohomish River Near Monroe, WA

USGS Site No: 12150800 • Snohomish River • Snohomish County, WA

Snohomish River Near Monroe, WA on the Snohomish River is currently at 5,510 cfs (Very Low — 9th percentile for this date) . Gage height: 2.48 ft.

Reading from 1 week ago

Downstream on Snohomish River ↓

Snohomish River at Snohomish, WA

5,510

CFS Discharge

2.48

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	6,430	Today: 5,510 cfs
25th	Low threshold	8,690
50th (Median)	Normal (median)	11,500
75th	High threshold	16,100
95th	Very High threshold	23,000

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.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	4,850	2.19
May 27, 2026	4,980	2.25
May 26, 2026	5,440	2.45
May 25, 2026	5,830	2.61
May 24, 2026	6,040	2.70
May 23, 2026	6,170	2.76
May 22, 2026	6,290	2.80
May 21, 2026	6,360	2.83
May 20, 2026	6,680	2.96
May 19, 2026	7,390	3.22
May 18, 2026	8,570	3.64
May 17, 2026	10,500	4.26
May 16, 2026	11,100	4.44
May 15, 2026	10,400	4.24
Apr 20, 2026	8,220	3.52
Apr 19, 2026	8,040	3.46
Apr 18, 2026	8,370	3.58
Apr 17, 2026	9,080	3.82
Apr 16, 2026	10,400	4.22
Apr 15, 2026	11,600	4.59
Apr 14, 2026	8,680	3.68
Apr 13, 2026	7,690	3.33
Apr 12, 2026	7,260	3.18
Apr 11, 2026	7,370	3.22
Apr 10, 2026	7,450	3.25
Apr 9, 2026	7,890	3.41
Apr 8, 2026	8,860	3.74
Apr 7, 2026	9,500	3.95
Apr 6, 2026	8,380	3.58
Apr 5, 2026	8,000	3.45

Station Information

USGS Site No: 12150800
State: WA
County: Snohomish County
Coordinates: 47.8309, -122.0485
Drainage Area: 1,537 mi²
Datum (ft): 17.1
HUC Code: 17110011

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 10.0 ft
Flood Stage: 15.0 ft
Moderate Flood: 16.0 ft
Major Flood: 17.0 ft

Currently 12.52 ft below flood stage.

Recent Extremes

Max discharge: 106,000 cfs

Dec 11, 2025
Min discharge: 1,210 cfs

Sep 29, 2025
Days at flood stage: 5

Computed from the local daily-values archive.

Nearby Gauges

Green River at Tukwila, WA
26.9 mi · 0 cfs

Unknown
Springbrook Creek at Orillia, WA
28.9 mi · 6 cfs

High
Mill Creek Near Mouth at Orillia, WA
29.1 mi · 8 cfs

Normal
Green River at 200th Street at Kent, WA
30.0 mi · 619 cfs

Normal
Boxley Creek Near Edgewick, WA
30.2 mi · 61 cfs

Normal