Hammond Lake Water Level

Pennsylvania · updated daily from the U.S. Geological Survey

1086.52 ft

Hammond Lake is above average for this time of year and steady (+0.07 ft in the last 7 days).

Change since yesterday: -0.08 ft

Reading as of 2026-08-14 · higher than 61% of August readings on record

Where Hammond Lake sits historically

TODAY 1086.52 ftRECORD LOW1083.1 ft2016-10-20RECORD HIGH1103.83 ft2020-12-26

Today's level compared with every reading in our 9.9-year record for this lake.

Since yesterday

-0.08 ft

7-day change

+0.07 ft

30-day change

+0.00 ft

1-year change

+1.27 ft

Last 30 days

2026-07-171086.2–1086.9 ft2026-08-14

Last 12 months

2025-08-141083.2–1089.3 ft2026-08-14

Full history (9.9 years)

2016-10-011081.4–1100.1 ft2026-08-03

Hammond Lake records and averages

Current level1086.52 ft
Record high1103.83 ft (2020-12-26)
Record low1083.1 ft (2016-10-20)
Average of all readings1086.81 ft
Data span9.9 years (3,600 readings)

Frequently asked questions

Is Hammond Lake full right now?

As of 2026-08-14, Hammond Lake sits at 1086.52 ft, which is above average for this time of year.Over the past 30 days the level has held steady 0.00 ft.

What is the water level at Hammond Lake today?

The most recent reading is 1086.52 ft (2026-08-14), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.

What is the highest Hammond Lake has ever been?

The highest level in our records is 1103.83 ft on 2020-12-26. The lowest is 1083.1 ft on 2016-10-20. Our record covers about 9.9 years of readings.

Is Hammond Lake low for this time of year?

Compared with every August in our records, the current level is higher than 61% of them — above average for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

Why is Hammond Lake changing right now?

Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Hammond Lake has held steady 0.00 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.

How much has Hammond Lake changed over the past year?

The level is +1.27 ft compared with this date last year (1086.52 ft today). The full-history chart above covers 9.9 years, with a record high of 1103.83 ft and a record low of 1083.1 ft.

Nearby lakes in Pennsylvania

Tioga Lake water level
1081.55 ft · rising
Cowanesque Lake water level
1080.96 ft · rising
Kettle Cr Lake water level
842.01 ft · steady
Foster Joseph Sayers Lake water level
630.81 ft · steady
Francis E. Walter Reservoir water level
1364.05 ft · falling
Curwensville Lake water level
1162.47 ft · steady

Source: the U.S. Geological Survey. Readings are provisional and subject to revision by the publishing agency. All Pennsylvania lake levels.