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

Indian Rock Lake water level history

Daily records since 1989 · Level today: 373.04 ft

Highest on record
424.58 ft
Jul 27, 2018
Lowest on record
369.98 ft
Aug 2, 1993
Today
373.04 ft
Oct 21, 2026
Years of data
37
since 1989

In short

Across 36 complete years, 2025 had the lowest average level (372.16 ft) and 2018 the highest (379.54 ft).

On average the lake is lowest in August (373.52 ft) and highest in March (376.60 ft).

Indian Rock Lake 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 (292 days)372.65371.87Feb 5378.73Oct 12
2025372.16371.41Jan 5374.87Jul 10
2024374.33371.36Dec 22386.43Apr 3
2023372.20371.49Jun 9383.20Dec 18
2022373.84371.39Sep 3385.47May 7
2021375.48372.49Aug 16410.23Sep 2
2020374.08372.28Jul 20383.66Dec 25
2019377.27371.81Oct 22395.87Mar 22
2018379.54371.75Jul 14424.58Jul 27
2017373.78371.82Jan 1379.73Jul 29
2016374.97371.78Aug 28394.08Feb 4
2015374.00371.75Feb 27387.94Oct 29
2014376.78371.75Sep 18403.57May 1
2013375.97371.75Aug 6412.18Oct 12
2012374.15372.28Jun 28409.92Oct 30
2011377.23372.45Oct 28420.86Sep 10
2010374.76371.64Jun 19383.29Oct 1
2009373.87372.30Aug 11382.34Dec 27
2008374.26371.65Aug 20389.11Dec 12
2007373.65371.64Sep 21393.04Mar 3
2006374.35371.56Oct 16382.76Nov 17
2005373.99371.77Jun 19393.08Apr 3
2004375.86372.43Oct 29401.54Sep 19
2003377.14371.99Jul 31390.58Sep 23
2002372.95371.69Sep 9379.32Dec 14
2001372.80371.68Jun 15380.60Mar 30
2000373.56371.46Dec 13386.94Mar 22
1999372.88371.49Sep 14377.60Jan 18
1998376.00371.71Dec 25390.02Jun 24
1997375.40371.67Oct 7382.57Mar 31
1996378.36373.26Jul 8411.25Jan 20
1995376.38372.19Sep 15387.40Jan 20
1994378.43375.27Jul 13388.38Mar 28
1993377.15369.98Aug 2397.86Dec 6
1992374.00372.33Jul 15388.22Mar 27
1991373.34371.69Jul 19379.82Jan 17
1990377.02372.56Nov 9390.25Aug 1
1989 (1 days)375.04375.04Dec 31375.04Dec 31

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

Monthly averages

MonthAverageLowestHighest
January375.44371.41411.25
February376.05371.41395.94
March376.60370.91401.67
April376.27371.57394.89
May375.70371.58403.57
June374.44371.49390.02
July374.04371.59424.58
August373.52369.98407.92
September373.92370.20420.86
October374.17371.39412.18
November374.71371.46391.40
December375.23371.36397.86

Download

Daily levels as CSV (13,436 rows; credit the original agencies listed below)