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

Hungry Horse Reservoir water level history

Daily records since 2001 · Level today: 3,541.11 ft

Highest on record
3,560.33 ft
Jun 26, 2012
Lowest on record
3,469.76 ft
May 11, 2011
Today
3,541.11 ft
Oct 21, 2026
Years of data
25
since 2001

In short

Across 24 complete years, 2008 had the lowest average level (3,528.31 ft) and 2005 the highest (3,545.68 ft).

On average the lake is lowest in April (3,521.85 ft) and highest in July (3,557.03 ft).

Hungry Horse Reservoir level, all years

Loading chart…

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

Lowest years

Years ranked by their lowest daily level.

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (290 days)3,548.083,538.57Mar 73,559.81Jun 25
20253,537.493,509.03Mar 233,558.47Jul 9
20243,541.663,525.41Dec 313,559.17Jun 16
20233,535.493,509.15Apr 103,553.55Jul 6
20223,543.333,527.14May 43,558.55Jun 30
20213,544.043,524.08Apr 163,559.43Jul 3
20203,542.983,522.85Apr 213,558.39Jul 17
20193,542.643,520.53Mar 253,557.75Jul 9
20183,536.023,471.57Apr 273,559.86Jul 13
20173,543.803,528.00May 53,555.70Jul 15
20163,541.223,515.85Feb 153,558.96Jul 11
20153,538.543,523.26Dec 313,549.92Jun 25
20143,538.493,494.33May 13,559.64Jul 21
20133,545.443,526.01May 63,559.38Jul 11
20123,544.273,523.41Apr 223,560.33Jun 26
20113,530.973,469.76May 113,559.17Aug 3
20103,538.773,520.22Mar 283,559.78Jul 2
20093,536.143,507.90Apr 83,559.74Jul 18
20083,528.313,499.32Apr 293,559.43Jul 12
20073,540.023,525.83Dec 313,559.79Jun 29
20063,539.363,515.86Apr 293,558.56Jun 20
20053,545.683,537.47Sep 293,559.77Jun 30
20043,536.953,512.00Mar 173,559.92Jun 27
20033,530.393,507.60Mar 153,558.05Jul 4
20023,529.773,508.61Apr 73,560.33Jul 15
2001 (81 days)3,525.843,519.82Dec 313,531.36Oct 10

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

Monthly averages

MonthAverageLowestHighest
January3,534.493,513.423,548.93
February3,529.113,510.033,545.85
March3,524.083,496.003,548.45
April3,521.853,471.573,550.67
May3,530.463,469.763,554.72
June3,551.263,498.933,560.33
July3,557.033,543.713,560.33
August3,552.253,539.923,559.23
September3,546.653,532.883,555.46
October3,542.053,527.893,553.28
November3,539.883,508.953,553.57
December3,538.293,519.823,550.95

Download

Daily levels as CSV (9,128 rows; credit the original agencies listed below)