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Hebgen Lake water level history

Daily records since 2023 · Level today: 6,529.88 ft

Highest on record
6,534.81 ft
Jun 10, 2026
Lowest on record
6,528.36 ft
Apr 9, 2025
Today
6,529.88 ft
Oct 23, 2026
Years of data
3
since 2023

In short

Across 2 complete years, 2025 had the lowest average level (6,530.22 ft) and 2024 the highest (6,531.15 ft).

On average the lake is lowest in March (6,529.23 ft) and highest in June (6,534.07 ft).

Hebgen Lake level, all years

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Measured Normal range for the date (middle 50% of past years)

Each year's lowest and highest level

6,5286,5306,5326,5336,53520232024202520262023: lowest 6,531.08 ft (2023-12-30), highest 6,531.82 ft (2023-09-30), average 6,531.56 ft, 93 days measured2024: lowest 6,529.69 ft (2024-12-24), highest 6,534.75 ft (2024-06-28), average 6,531.15 ft, 352 days measured2025: lowest 6,528.36 ft (2025-04-09), highest 6,534.27 ft (2025-06-28), average 6,530.22 ft, 364 days measured2026: lowest 6,528.74 ft (2026-03-12), highest 6,534.81 ft (2026-06-10), average 6,531.13 ft, 292 days measured
6,5286,5306,5326,5336,53520232024202520262023: lowest 6,531.08 ft (2023-12-30), highest 6,531.82 ft (2023-09-30), average 6,531.56 ft, 93 days measured2024: lowest 6,529.69 ft (2024-12-24), highest 6,534.75 ft (2024-06-28), average 6,531.15 ft, 352 days measured2025: lowest 6,528.36 ft (2025-04-09), highest 6,534.27 ft (2025-06-28), average 6,530.22 ft, 364 days measured2026: lowest 6,528.74 ft (2026-03-12), highest 6,534.81 ft (2026-06-10), average 6,531.13 ft, 292 days measured
Lowest to highest that yearYear average2026 so far

One bar per year from the lowest to the highest daily level, with the year's average. Years with no bar have no daily record in the agency archive.

Lowest years

Years ranked by their lowest daily level.

  • 20256,528.36 ft on Apr 9
  • 20246,529.69 ft on Dec 24

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (292 days)6,531.136,528.74Mar 126,534.81Jun 10
20256,530.226,528.36Apr 96,534.27Jun 28
20246,531.156,529.69Dec 246,534.75Jun 28
2023 (93 days)6,531.566,531.08Dec 306,531.82Sep 30

Levels in feet. Partial years show the number of days with data.

Monthly averages

MonthAverageLowestHighest
January6,529.956,529.086,531.06
February6,529.486,528.546,530.70
March6,529.236,528.396,530.46
April6,529.696,528.366,531.20
May6,531.616,528.666,533.99
June6,534.076,532.536,534.81
July6,533.706,532.156,534.72
August6,531.646,530.806,532.66
September6,530.646,529.646,531.82
October6,530.416,529.296,531.80
November6,530.356,529.286,531.81
December6,530.156,529.136,531.50

Download

Daily levels as CSV (1,101 rows; credit the original agencies listed below)