St. Mary Canal at St. Mary Crossing Near Babb Mount

USGS Site No: 05018500 • St. Mary Canal • Glacier County, MT

St. Mary Canal at St. Mary Crossing Near Babb Mount on the St. Mary Canal is currently at 594 cfs (Normal — 56th percentile for this date) . Gage height: 23.47 ft.

Reading from

594
CFS Discharge
23.47
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 21
25th Low threshold 419
50th (Median) Normal (median) 578
75th High threshold 642 Today: 594 cfs
95th Very High threshold 700

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.

625 313 0 cfs Oct 2 Oct 31
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
Oct 31, 2025 0 —
Oct 30, 2025 0 —
Oct 29, 2025 0 —
Oct 28, 2025 0 —
Oct 27, 2025 0 —
Oct 26, 2025 0 —
Oct 25, 2025 0 —
Oct 24, 2025 0 —
Oct 23, 2025 0 —
Oct 22, 2025 0 —
Oct 21, 2025 0 —
Oct 20, 2025 0 —
Oct 19, 2025 0 —
Oct 18, 2025 0 —
Oct 17, 2025 0 —
Oct 16, 2025 0 —
Oct 15, 2025 0 —
Oct 14, 2025 0 —
Oct 13, 2025 0 —
Oct 12, 2025 0 —
Oct 11, 2025 0 —
Oct 10, 2025 0 —
Oct 9, 2025 0 —
Oct 8, 2025 0 —
Oct 7, 2025 0 —
Oct 6, 2025 0 —
Oct 5, 2025 0 —
Oct 4, 2025 0 —
Oct 3, 2025 0 —
Oct 2, 2025 0 —

Station Information

USGS Site No
05018500
State
MT
County
Glacier County
Coordinates
48.9470, -113.3753
Datum (ft)
4,450.0
HUC Code
10010002
View on USGS NWIS →

Recent Extremes

Max discharge
564 cfs
Jul 30, 2025
Min discharge
0 cfs
Oct 31, 2025

Computed from the local daily-values archive.

Nearby Gauges

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