Ellis River at South Andover, Maine

USGS Site No: 01054300Ellis River • Oxford County, ME

Ellis River at South Andover, Maine on the Ellis River is currently at 158 cfs (Normal — 48th percentile for this date) . Gage height: 5.86 ft.

Reading from

158
CFS Discharge
5.86
Gage Height (ft)
Normal
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 74
25th Low threshold 112
50th (Median) Normal (median) 162 Today: 158 cfs
75th High threshold 253
95th Very High threshold 760

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.

2.7k 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 182
May 27, 2026 226
May 26, 2026 310
May 25, 2026 246
May 24, 2026 168
May 23, 2026 189
May 22, 2026 218
May 21, 2026 257
May 20, 2026 313
May 19, 2026 372
May 18, 2026 450
May 17, 2026 617
May 16, 2026 1,130
May 15, 2026 1,580
Apr 21, 2026 624
Apr 20, 2026 888
Apr 19, 2026 782
Apr 18, 2026 1,010
Apr 17, 2026 1,490
Apr 16, 2026 888
Apr 15, 2026 1,070
Apr 14, 2026 914
Apr 13, 2026 579
Apr 12, 2026 511
Apr 11, 2026 618
Apr 10, 2026 412
Apr 9, 2026 391
Apr 8, 2026 443
Apr 7, 2026 567
Apr 6, 2026 833

Station Information

USGS Site No
01054300
State
ME
County
Oxford County
Coordinates
44.5933, -70.7331
Drainage Area
131 mi²
Datum (ft)
619.2
HUC Code
01040002
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
14.0 ft
Flood Stage
16.0 ft
Moderate Flood
18.0 ft
Major Flood
19.0 ft

Currently 10.14 ft below flood stage.

Recent Extremes

Max discharge
1,580 cfs
May 15, 2026
Min discharge
7 cfs
Sep 21, 2025
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges