Blackstone River, West. Main St., at Millbury, MA

USGS Site No: 01109730 • Blackstone River, West. Main St. • Worcester County, MA

Blackstone River, West. Main St., at Millbury, MA on the Blackstone River, West. Main St. is currently at 94 cfs (Very Low — 10th percentile for this date) . Gage height: 1.99 ft.

Reading from

94
CFS Discharge
1.99
Gage Height (ft)
Very Low
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 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 95 Today: 94 cfs
25th Low threshold 119
50th (Median) Normal (median) 152
75th High threshold 266
95th Very High threshold 644

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.

2.6k 1.3k 0 cfs Apr 6 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 103 —
May 27, 2026 121 —
May 26, 2026 144 —
May 25, 2026 184 —
May 24, 2026 144 —
May 23, 2026 85 —
May 22, 2026 94 —
May 21, 2026 106 —
May 20, 2026 137 —
May 19, 2026 144 —
May 18, 2026 114 —
May 17, 2026 136 —
May 16, 2026 162 —
May 15, 2026 216 —
Apr 21, 2026 121 —
Apr 20, 2026 134 —
Apr 19, 2026 142 —
Apr 18, 2026 143 —
Apr 17, 2026 159 —
Apr 16, 2026 195 —
Apr 15, 2026 121 —
Apr 14, 2026 113 —
Apr 13, 2026 112 —
Apr 12, 2026 115 —
Apr 11, 2026 118 —
Apr 10, 2026 121 —
Apr 9, 2026 127 —
Apr 8, 2026 136 —
Apr 7, 2026 147 —
Apr 6, 2026 158 —

Station Information

USGS Site No
01109730
State
MA
County
Worcester County
Coordinates
42.1890, -71.7651
Drainage Area
71 mi²
Datum (ft)
379.4
HUC Code
01090003
View on USGS NWIS →

Recent Extremes

Max discharge
852 cfs
May 23, 2025
Min discharge
42 cfs
Oct 4, 2025

Computed from the local daily-values archive.

Nearby Gauges

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