States

Tioga Lake

at Tioga Dam at Tioga, PA · Pennsylvania · USGS gauge
1,0791,0801,0811,0821,083
Grey bar: recent range 1,081.1–1,081.6 ft.
Water level · above gauge datum
1,081.31FT
Gauge elevation · no % full published
7 days −0.05 ft30 days −0.20 ftvs last year +0.29 ft
Reading for Oct 25, 2026, 18:00 UTC · page refreshed Oct 25, 21:16 UTC
Source: U.S. Geological Survey (Water Data for the Nation)
Worth going today?This Afternoon
Looks good
Light wind, dry
Wind6 mph
Rain0%
Temp61°F
Level1,081.3 ft
This AfternoonSunny · 61°F
SW 6 mph · rain 0%
TonightMostly Clear then Patchy Fog · 37°F
SW 5 mph · rain 0%
NWS forecast for the gauge location. Good = wind ≤ 10 mph and rain ≤ 30%; storms are flagged. Not safety advice – check local conditions, closures and warnings.

Level history

Last 30 days of daily means.

1,081.01,081.51,082.0ftSep 24Oct 2Oct 9Oct 16Oct 24
1,081.01,081.51,082.0ftSep 24Oct 9Oct 24

Field notes

As of Oct 25, 2026, Tioga Lake stood at 1,081.31 (above gauge datum) ft.

The level has been roughly steady over the past week (−0.05 ft).

Compared with a year ago (1,081.02 ft, same time of day), the lake is 0.29 ft higher.

Readings come from the USGS gauge “Tioga Lake at Tioga Dam at Tioga, PA”. Gauge elevations are not directly comparable between lakes because each uses its own datum.

Lake facts

Gauge / stationTioga Lake at Tioga Dam at Tioga, PA
Elevation datumft above gauge datum
Gauge location41.8992, -77.1389

Nearby lakes

Hammond Lake0 mi W1,086.10 ft−0.20 ftCowanesque Lake6 mi N1,080.34 ft−0.02 ftAlmond Lake43 mi NW · NY1,256.82 ft−0.25 ftCayuga Inlet (cayuga Lake)50 mi NE · NY381.94 ft−0.03 ftKettle Creek Lake55 mi SW842.90 ft+0.24 ft

Common questions

Is Tioga Lake rising or falling?

Over the last 7 days it changed −0.05 ft and over 30 days −0.20 ft.

How full is Tioga Lake?

USGS publishes the water surface elevation for this gauge but not a percent-full figure, so we don't show one rather than estimate it.

How often is this page updated?

The page is rebuilt automatically every day from USGS's published data. Values can be revised later by the source agency.

Where does the data come from?

The U.S. Geological Survey's Water Data API (api.waterdata.usgs.gov), which publishes readings from USGS and partner gauges. Forecasts come from the National Weather Service.

Latest instantaneous reading; 7-day, 30-day and year-ago changes compare readings at the same hour. USGS data are provisional and subject to revision. This page is not affiliated with or endorsed by the USGS. See data sources.