Natchaug River at Willimantic, CT

USGS Site No: 01122000Natchaug River • Southeastern Connecticut Planning Region, CT

Natchaug River at Willimantic, CT on the Natchaug River is currently at 303 cfs (High — 75th percentile for this date) . Gage height: 2.85 ft.

Reading from

303
CFS Discharge
2.85
Gage Height (ft)
High
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 60
25th Low threshold 96
50th (Median) Normal (median) 136
75th High threshold 294
95th Very High threshold 1,680 Today: 303 cfs

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.

2.1k 1.1k 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 314 2.89
May 27, 2026 380 3.13
May 26, 2026 453 3.38
May 25, 2026 348 2.99
May 24, 2026 205 2.45
May 23, 2026 179 2.33
May 22, 2026 178 2.32
May 21, 2026 180 2.33
May 20, 2026 212 2.48
May 19, 2026 259 2.67
May 18, 2026 444 3.35
May 17, 2026 612 3.95
May 16, 2026 632 4.02
May 15, 2026 512 3.60
Apr 21, 2026 3.38
Apr 20, 2026 389 3.16
Apr 19, 2026 331 2.95
Apr 18, 2026 324 2.93
Apr 17, 2026 320 2.91
Apr 16, 2026 322 2.92
Apr 15, 2026 305 2.86
Apr 14, 2026 306 2.86
Apr 13, 2026 308 2.87
Apr 12, 2026 310 2.88
Apr 11, 2026 342 2.99
Apr 10, 2026 377 3.12
Apr 9, 2026 379 3.13
Apr 8, 2026 448 3.37
Apr 7, 2026 530 3.65
Apr 6, 2026 513 3.59

Station Information

USGS Site No
01122000
State
CT
Coordinates
41.7201, -72.1956
Drainage Area
174 mi²
Datum (ft)
149.3
HUC Code
011000020206
View on USGS NWIS →

Recent Extremes

Max discharge
1,920 cfs
Mar 18, 2026
Min discharge
21 cfs
Sep 22, 2025

Computed from the local daily-values archive.

Nearby Gauges