Independent water-data site. Not a government website. Every number comes from official agency gauges.

Hells Canyon Lake water level history

Daily records since 1992 · Level today: 1,681.92 ft

Highest on record
1,688.20 ft
Jun 28, 1998
Lowest on record
1,678.18 ft
Oct 8, 1992
Today
1,681.92 ft
Oct 20, 2026
Years of data
34
since 1992

In short

Across 33 complete years, 2022 had the lowest average level (1,685.27 ft) and 2018 the highest (1,686.35 ft).

On average the lake is lowest in November (1,685.20 ft) and highest in May (1,686.21 ft).

Hells Canyon Lake level, all years

Loading chart…

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

Lowest years

Years ranked by their lowest daily level.

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (290 days)1,685.451,681.54Oct 141,686.99Jun 30
20251,685.531,684.06Jan 271,687.01Apr 14
20241,685.571,684.12Jul 111,686.96May 13
20231,685.361,683.60Jan 121,686.76May 7
20221,685.271,683.54Dec 101,687.47Jun 14
20211,685.301,684.09Jan 21,686.61Apr 3
20201,685.701,683.91Aug 191,687.05Apr 16
20191,685.851,684.09Oct 91,687.04Mar 16
20181,686.351,684.74Sep 111,687.76Jul 23
20171,686.061,683.22Apr 201,687.89Sep 14
20161,686.221,684.67Oct 211,687.41Apr 2
20151,685.721,684.30May 141,687.34Dec 22
20141,685.701,683.78Oct 71,686.94Mar 9
20131,685.451,682.27Feb 51,686.85May 4
20121,685.751,684.11Nov 71,687.16May 26
20111,686.041,684.08Jan 51,687.27May 24
20101,686.001,684.49Oct 281,687.31Apr 17
20091,686.081,684.44Mar 171,687.07Aug 20
20081,685.891,684.31Nov 251,687.20Mar 2
20071,685.781,684.33Nov 101,686.97Apr 7
20061,685.851,683.20Apr 191,687.59May 17
20051,685.731,684.02Nov 101,687.66Dec 31
20041,685.811,683.96Nov 251,687.30Sep 5
20031,685.751,684.03May 191,687.37Jun 3
20021,686.121,683.89Nov 201,687.10Apr 17
20011,685.811,681.95Jan 71,687.36May 16
20001,685.411,679.00Jan 81,687.56Apr 28
19991,685.541,681.20Nov 211,687.39Mar 3
19981,685.891,681.28Oct 281,688.20Jun 28
19971,686.101,681.75Jan 41,687.69Jun 28
19961,686.291,680.55Dec 221,687.98Sep 9
19951,686.251,682.47Jul 261,687.59Jun 1
19941,685.841,679.61Mar 221,687.46Oct 15
19931,685.961,681.52Dec 121,687.71Feb 22
1992 (153 days)1,685.601,678.18Oct 81,687.62Dec 27

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

Monthly averages

MonthAverageLowestHighest
January1,685.621,679.001,687.47
February1,685.861,682.271,687.71
March1,685.941,679.611,687.66
April1,686.041,682.971,687.75
May1,686.211,683.691,687.60
June1,686.171,684.131,688.20
July1,685.971,682.471,687.76
August1,685.941,681.671,687.53
September1,685.931,679.061,687.98
October1,685.311,678.181,687.64
November1,685.201,680.431,687.66
December1,685.491,680.551,687.69

Download

Daily levels as CSV (12,496 rows; credit the original agencies listed below)