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

Cottonwood Springs Lake water level history

Daily records since 2011 · Level today: 3,848.32 ft

Highest on record
3,865.13 ft
May 21, 2020
Lowest on record
3,848.29 ft
Jun 10, 2026
Today
3,848.32 ft
Oct 21, 2026
Years of data
16
since 2011

In short

Across 14 complete years, 2025 had the lowest average level (3,854.66 ft) and 2020 the highest (3,864.26 ft).

On average the lake is lowest in September (3,857.97 ft) and highest in April (3,858.53 ft).

Cottonwood Springs 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 (293 days)3,850.953,848.29Jun 103,853.50May 22
20253,854.663,852.27Dec 313,856.44Jan 1
20243,858.423,856.44Dec 313,859.66Feb 18
20233,858.533,857.56Jul 283,859.51Aug 4
20223,859.853,858.05Dec 313,861.00Jan 30
20213,862.003,860.98Dec 313,862.76Jan 1
20203,864.263,862.75Dec 283,865.13May 21
20193,861.563,855.40Jan 13,864.83Dec 30
20183,854.763,854.25Sep 123,855.39Dec 31
20173,856.963,855.00Nov 203,858.79Feb 10
20163,859.843,858.37Dec 153,860.68May 10
20153,858.343,856.92May 53,860.32Dec 18
20143,857.963,857.32Feb 113,858.54Jun 18
20133,856.443,854.16Jul 73,858.51Jul 9
20123,858.193,855.86Dec 313,859.75Mar 1
2011 (240 days)3,858.393,856.50Jun 53,859.72Dec 7

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

Monthly averages

MonthAverageLowestHighest
January3,858.263,851.983,864.84
February3,858.263,851.713,864.91
March3,858.393,851.413,865.05
April3,858.533,851.273,865.08
May3,858.473,853.483,865.13
June3,858.293,848.293,865.04
July3,858.273,849.493,864.70
August3,858.263,848.873,864.46
September3,857.973,848.553,864.07
October3,858.043,848.333,864.31
November3,858.383,852.573,864.62
December3,858.303,852.273,864.83

Download

Daily levels as CSV (5,647 rows; credit the original agencies listed below)