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Conemaugh Lake water level

Lake, Pennsylvania, United States

Directions

Very high for mid-October

Surface elevation

916.01ft Down 0.50 ft over the last 24 hours

900 925 950 975 Minor floodstage 974.20 ft

History

905910915ftOct 12Oct 13Oct 15Oct 17Oct 18905910915ftOct 12Oct 15Oct 18
910920ftSep 19Sep 26Oct 3Oct 11Oct 18910920ftSep 19Oct 3Oct 18
900925950975ftOct 2025Jan 2026Apr 2026Jul 2026Oct 2026Minor flood stage900925950975ftOct 2025Apr 2026Oct 2026Minor flood stage
900925950975ftOct 2020Apr 2022Oct 2023Apr 2025Oct 2026Minor flood stage900925950975ftOct 2020Oct 2023Oct 2026Minor flood stage
900920940960ftJanMarMayJulSepNov2026900920940960ftJanAprJulOct2026

202120222023202420252026

Surface elevation Normal range (10–90 %) Minor flood stage

What this means

Conemaugh Lake is well above normal at 916.01 ft.

The median for mid-October is 904.39 ft, based on 7 years of readings, so the lake level is 11.62 ft above typical. It is 58.19 ft below the flood stage of 974.20 ft. On the same day last year the reading was 903.49 ft, a difference of +12.52 ft.

It has dropped 0.50 ft over the past 24 hours. In the last month it has stayed between 903.33 ft and 925.90 ft.

Lakes and reservoirs often sit lower in fall after a summer of evaporation and use, and recover with winter rain and spring snowmelt.

Compared with 7 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
904.39 ft11.62 ft above the median for this date
Normal for this date
902.90 ft – 906.87 ft8 years in 10 fall in this range (7 years of records)
Same day last year
903.49 ft+12.52 ft
Lowest and highest in 30 days
903.33 ft – 925.90 ft
Lowest and highest in 12 months
901.37 ft – 940.57 ft

On the water at Conemaugh Lake

Well above normal, shoreline trees stand in the water and debris floats on the surface. Slow down near the edges.

Wear a life jacket on the water. Most boating deaths involve people who were not wearing one.

Weather at the gauge

Rain in the last 3 days: 0.22 in.

18 Sun 58° 33° – Wind 5 mph
19 Mon 61° 39° – Wind 5 mph
20 Tue 64° 38° – Wind 7 mph
21 Wed 62° 38° – Wind 5 mph
22 Thu 62° 37° – Wind 5 mph
23 Fri 63° 41° – Wind 5 mph
24 Sat 62° 38° – Wind 8 mph

Forecast: Open-Meteo

Sunrise 07:32 AM Sunset 06:34 PM Daylight 11 hr, 2 min First quarter 52%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Conemaugh River at TunneltonRiver gauge, Conemaugh River 5.01 ft Below flood stage ±0 1.6 mi
Loyalhanna Creek at Loyalhanna DamRiver gauge, Loyalhanna Creek 2.47 ft Below flood stage −0.01 ft 4.4 mi
Loyalhanna Creek LakeLake 925.04 ft Below flood stage −0.85 ft 4.5 mi
Blacklick Creek at JosephineRiver gauge, Blacklick Creek 4.23 ft Below flood stage −0.41 ft 9 mi
Loyalhanna Creek at LatrobeRiver gauge, Loyalhanna Creek 6.89 ft High −0.42 ft 11 mi
Two Lick Creek at GracetonRiver gauge, Two Lick Creek 3.08 ft Below flood stage −0.12 ft 11 mi
Loyalhanna Creek at KingstonRiver gauge, Loyalhanna Creek 3.31 ft Below flood stage −0.49 ft 12 mi
Crooked Creek at IdahoRiver gauge, Crooked Creek 3.47 ft Below flood stage −0.35 ft 13 mi

Questions and answers

Is Conemaugh Lake higher than last year?

Yes, it is 12.52 ft higher than on the same day last year, when the reading was 903.49 ft.

What is a normal level for Conemaugh Lake in mid-October?

The median for mid-October is 904.39 ft. In 8 years out of 10 the reading falls between 902.90 ft and 906.87 ft, based on 7 years of records.

Is Conemaugh Lake really 916.01 ft deep?

No. 916.01 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Conemaugh Lake today?

On Oct 18, 2026, 01:30 PM EDT, the surface elevation was 916.01 ft. Down 0.50 ft over the last 24 hours.

Is Conemaugh Lake rising or falling?

Down 0.50 ft over the last 24 hours. Up 10.97 ft over the last 7 days.

Is the level of Conemaugh Lake normal?

Very high for mid-October. Compared with 7 years of daily readings for this time of year.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:03043500 (Agency page)
Coordinates
40.46835, -79.36697 (WGS84)
Vertical datum
NAVD88
Update interval
every 15 minutes
Licence
Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Surface elevation 916.01 ft 2026-10-18 17:30 Provisional

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How to cite

U.S. Geological Survey: Conemaugh Lake (usgs:03043500). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/pennsylvania/conemaugh-lake

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer