Oswego HUC8 04140203
A 377 km² sub-basin of the Great Lakes region in NY. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
61
Moderate
Drought index
172
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
50%
of 2 reporting
Median flow
61%
p29 of record
Water assets
122
0 springs · 73 wells
USGS gauges (2)
- OSWEGO RIVER NEAR PHOENIX NY042470551,530 cfsp24 · below normal
- OSWEGO RIVER AT LOCK 7, OSWEGO NY042490002,280 cfsp35 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 172 | 0 | 1/2 | p29 |
| 2026-10-18 | 172 | 0 | 0/2 | p31 |
| 2026-10-17 | 172 | 0 | 1/2 | p28 |
| 2026-10-16 | 172 | 0 | 2/2 | p18 |
| 2026-10-15 | 100 | 0 | 1/2 | p20 |
| 2026-10-14 | 100 | 0 | 1/2 | p17 |
| 2026-10-13 | 100 | 0 | 2/2 | p9 |
| 2026-10-12 | 100 | 0 | 2/2 | p9 |
| 2026-10-11 | 100 | 0 | 2/2 | p9 |
| 2026-10-10 | 100 | 0 | 2/2 | p12 |
| 2026-10-09 | 100 | 0 | 1/2 | p19 |
| 2026-10-08 | 100 | 0 | 1/2 | p19 |
| 2026-10-07 | 100 | 0 | 1/2 | p19 |
| 2026-10-06 | 100 | 0 | 1/2 | p23 |
Top water assets
- 66High Damreservoir
- 65Varick Lock & Dam 7reservoir
- 65Minetto Lock & Dam 5reservoir
- 65Upper Fulton Lock & Dam 2reservoir
- 65Sharps Pond Damreservoir
- 65Phoenix Lock & Dam No. 1reservoir
- 65Roland Foster Damreservoir
- 65Oswego River Near Phoenix Nyriver
- 65Oswego River At Lock 7, Oswego Nyriver
- 65Granbyreservoir