States

Hammond Lake

at Hammond Dam at Tioga, PA · Pennsylvania · USGS gauge
1,0841,0851,0861,0871,088
Grey bar: recent range 1,086.2–1,086.6 ft.
Water level · above gauge datum
1,086.10FT
Gauge elevation · no % full published
7 days −0.20 ft30 days −0.44 ftvs last year +1.68 ft
Reading for Oct 25, 2026, 18:00 UTC · page refreshed Oct 25, 20:24 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
Level1,086.1 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.

1,086.01,086.51,087.0ftSep 24Oct 2Oct 9Oct 16Oct 24
1,086.01,086.51,087.0ftSep 24Oct 9Oct 24

Field notes

On Oct 25, 2026, Hammond Lake was at 1,086.10 (above gauge datum) ft.

Over the past 7 days the lake has been falling (−0.20 ft), and it is −0.44 ft over 30 days.

Compared with a year ago (1,084.42 ft, same time of day), the lake is 1.68 ft higher.

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

Lake facts

Gauge / stationHammond Lake at Hammond Dam at Tioga, PA
Elevation datumft above gauge datum
Gauge location41.8990, -77.1475

Nearby lakes

Tioga Lake0 mi E1,081.31 ft−0.05 ftCowanesque Lake6 mi N1,080.34 ft−0.02 ftAlmond Lake42 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 Hammond Lake rising or falling?

Over the last 7 days it changed −0.20 ft and over 30 days −0.44 ft.

How full is Hammond 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. USGS data are provisional and subject to revision. This page is not affiliated with or endorsed by the USGS. See data sources.