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Conesus Lake Water Level Today

Daily level, changes and history for Conesus Lake, on the Conesus Creek (outlet) in New York.

Updated · Source: USGS 04227980 Provisional

Water level Provisional

817.10ft

msl · 9:45 AM EST, Nov 9, 2026

  • −0.05 ftin 24 h−0.34 ft in 7 days−1.00 ft in 30 days
816818820816818820

    Is Conesus Lake full?

    Conesus Lake is a natural Finger Lake. A small dam on its outlet at Lakeville regulates the outflow, but there is no set full level, so the page compares the level with past years.

    Conesus Lake level history

    View data table
    DateLevel (ft)
    Nov 9, 2026817.10
    Nov 8, 2026817.14
    Nov 7, 2026817.20
    Nov 6, 2026817.25
    Nov 5, 2026817.29
    Nov 4, 2026817.34
    Nov 3, 2026817.39
    Nov 2, 2026817.44
    Nov 1, 2026817.49
    Oct 31, 2026817.55
    Oct 30, 2026817.61
    Oct 29, 2026817.66
    Oct 28, 2026817.71
    Oct 27, 2026817.76
    Oct 26, 2026817.81
    Oct 25, 2026817.85
    Oct 24, 2026817.89
    Oct 23, 2026817.93
    Oct 22, 2026817.97
    Oct 21, 2026818.00
    Oct 20, 2026818.02
    Oct 19, 2026818.03
    Oct 18, 2026818.05
    Oct 17, 2026818.07
    Oct 16, 2026818.07
    Oct 15, 2026818.05
    Oct 14, 2026818.07
    Oct 13, 2026818.07
    Oct 12, 2026818.08
    Oct 11, 2026818.09
    Oct 10, 2026818.10
    • Conesus Lake level
    Source: USGS · Daily averages since 1971

    Conesus Lake on Nov 9 in past years

    Conesus Lake water level on Nov 9 in past years
    YearLevel (ft)vs today
    2026today817.10—
    2024817.43+0.33
    2023816.83−0.27
    2022817.05−0.05
    2021817.98+0.88
    2020817.73+0.63
    2019818.01+0.91
    2018817.89+0.79
    2017818.71+1.61
    2016817.13+0.03

    Today’s level is the highest for this date since 2024.

    Lake facts

    Highest since 1971
    822.49 ftJun 24, 1972
    Lowest since 1971
    816.12 ftDec 21, 1988
    Data since
    Oct 1, 1971
    Dam
    Conesus Lake outlet dam
    River
    Conesus Creek (outlet)
    Gauge location
    42.7943, −77.7208

    Records cover Oct 1, 1971 to today (daily averages).

    Conesus Lake map and depth

    • Level gauge
    Shoreline © OpenStreetMap contributors · Open the full map
    Surface area
    about 3,220 acresmeasured on the OpenStreetMap outline

    The outline shows the mapped shoreline, not today’s water line: when the lake is low, the water stands back from it.

    Weather on the lake

    1. Today50°FHighLow 38°FNW 13–17 mphChance Rain Showers
    2. Tonight38°FLowSW 5–12 mphMostly Cloudy
    3. Tuesday58°FHighLow 39°FSW 9–18 mphPartly Sunny
    4. Wednesday56°FHighLow 38°FW 3–8 mphPartly Sunny
    5. Thursday49°FHighLow 33°FE 3–10 mphChance Rain Showers then Light Rain
    6. Friday43°FHighLow 30°FN 13 mphRain and Snow Likely
    7. Saturday43°FHighLow 31°FNW 13 mphChance Rain and Snow then Chance Rain and Snow Showers

    Forecast: National Weather Service for the dam area (42.79, −77.72). Wind speeds are forecasts, not measurements.

    Nearby lakes

    Quick answers

    Is Conesus Lake rising or falling?
    It is falling: −0.34 ft in the last 7 days and −0.05 ft in 24 hours, to 817.10 ft on 9:45 AM EST, Nov 9, 2026 (US Geological Survey).
    What is the highest level in our data?
    Conesus Lake reached 822.49 ft on Jun 24, 1972. The lowest was 816.12 ft on Dec 21, 1988 (USGS data since 1971; older records are not in this data set).
    How much has Conesus Lake changed in the last year?
    In the last 12 months it ranged from 816.52 ft (Dec 17, 2025) to 819.51 ft (Apr 1, 2026), a swing of 2.99 ft.
    How often is this page updated?
    This page is updated several times a day with the latest reading from US Geological Survey. The last reading is from 9:45 AM EST, Nov 9, 2026.

    Where this data comes from

    Reservoir gauge 04227980 of the US Geological Survey (waterdata.usgs.gov). Recent readings are provisional and may be revised. Weather from the National Weather Service.

    Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.