Chatfield Reservoir water level history
Daily records since 1989 · Level today: 5,431.81 ft
Highest on record
5,448.47 ft
Jun 20, 2015
Lowest on record
5,411.18 ft
Jan 24, 1991
Today
5,431.81 ft
Oct 21, 2026
Years of data
37
since 1989
In short
Across 35 complete years, 2004 had the lowest average level (5,426.27 ft) and 2024 the highest (5,440.95 ft).
On average the lake is lowest in October (5,429.12 ft) and highest in March (5,432.31 ft).
Chatfield 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.
- 1991
- 2006
- 2003
- 2004
- 2007
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (292 days) | 5,434.95 | 5,431.77 | Oct 13 | 5,437.67 | Mar 19 |
| 2025 | 5,438.39 | 5,435.06 | Nov 1 | 5,440.72 | Jun 7 |
| 2024 | 5,440.95 | 5,435.90 | Oct 22 | 5,444.73 | Apr 29 |
| 2023 | 5,439.46 | 5,430.47 | Jan 4 | 5,444.23 | Jun 4 |
| 2022 | 5,430.94 | 5,427.28 | Aug 30 | 5,435.24 | Mar 17 |
| 2021 | 5,431.79 | 5,428.44 | Apr 23 | 5,436.85 | Jun 8 |
| 2020 | 5,430.11 | 5,427.21 | Aug 2 | 5,432.12 | Apr 20 |
| 2019 | 5,430.34 | 5,427.23 | Oct 13 | 5,432.23 | Jul 1 |
| 2018 | 5,430.68 | 5,428.13 | Jan 24 | 5,432.12 | May 30 |
| 2017 | 5,430.41 | 5,428.08 | Sep 5 | 5,432.32 | May 19 |
| 2016 | 5,431.12 | 5,428.89 | Sep 7 | 5,433.13 | Apr 27 |
| 2015 | 5,432.65 | 5,426.93 | Aug 30 | 5,448.47 | Jun 20 |
| 2014 | 5,431.75 | 5,429.08 | Jul 26 | 5,432.71 | May 26 |
| 2013 | 5,429.42 | 5,423.37 | Aug 1 | 5,432.08 | Feb 25 |
| 2012 | 5,430.26 | 5,428.45 | Oct 19 | 5,432.01 | Feb 16 |
| 2011 | 5,430.08 | 5,426.69 | Sep 14 | 5,433.19 | Jul 14 |
| 2010 | 5,430.21 | 5,426.68 | Oct 25 | 5,433.64 | Apr 25 |
| 2009 | 5,431.46 | 5,428.97 | May 24 | 5,433.81 | Jun 4 |
| 2008 | 5,429.68 | 5,425.00 | Apr 29 | 5,432.50 | Jul 18 |
| 2007 | 5,429.25 | 5,423.16 | Oct 15 | 5,434.03 | Apr 30 |
| 2006 | 5,428.46 | 5,422.85 | Nov 1 | 5,432.57 | Jul 10 |
| 2005 | 5,429.68 | 5,425.70 | Jan 1 | 5,432.12 | May 4 |
| 2004 | 5,426.27 | 5,423.14 | Aug 4 | 5,430.16 | Apr 5 |
| 2003 | 5,428.49 | 5,423.03 | Aug 30 | 5,433.42 | Mar 24 |
| 2002 | 5,430.79 | 5,429.24 | Aug 21 | 5,432.09 | Feb 19 |
| 2001 | 5,429.41 | 5,425.17 | Sep 29 | 5,432.70 | Feb 9 |
| 2000 | 5,430.83 | 5,427.47 | May 12 | 5,432.12 | Dec 25 |
| 1999 | 5,431.54 | 5,427.02 | Jul 25 | 5,434.60 | May 2 |
| 1998 | 5,429.55 | 5,423.59 | Oct 15 | 5,432.73 | Jun 7 |
| 1997 | 5,431.44 | 5,426.90 | Jun 6 | 5,432.50 | Jul 30 |
| 1996 | 5,428.52 | 5,424.71 | Jan 1 | 5,432.31 | Jun 23 |
| 1995 | 5,430.52 | 5,423.63 | Dec 18 | 5,446.39 | Jul 4 |
| 1994 | 5,429.66 | 5,426.74 | May 20 | 5,432.10 | Apr 11 |
| 1993 | 5,429.04 | 5,426.34 | Nov 8 | 5,432.21 | Apr 7 |
| 1992 (323 days) | 5,430.00 | 5,425.85 | May 31 | 5,442.73 | Mar 4 |
| 1991 | 5,429.35 | 5,411.18 | Jan 24 | 5,432.11 | Mar 24 |
| 1990 | 5,428.60 | 5,424.32 | Nov 21 | 5,444.27 | Jan 12 |
| 1989 (1 days) | 5,426.95 | 5,426.95 | Dec 31 | 5,426.95 | Dec 31 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 5,431.09 | 5,411.18 | 5,444.27 |
| February | 5,431.88 | 5,426.92 | 5,444.00 |
| March | 5,432.31 | 5,427.94 | 5,444.13 |
| April | 5,432.16 | 5,425.00 | 5,444.73 |
| May | 5,431.84 | 5,425.35 | 5,444.53 |
| June | 5,432.27 | 5,425.65 | 5,448.47 |
| July | 5,431.48 | 5,423.20 | 5,446.39 |
| August | 5,430.10 | 5,423.03 | 5,444.16 |
| September | 5,429.29 | 5,423.18 | 5,443.13 |
| October | 5,429.12 | 5,423.08 | 5,441.83 |
| November | 5,429.57 | 5,422.85 | 5,442.64 |
| December | 5,430.40 | 5,423.63 | 5,443.37 |
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Daily levels as CSV (13,371 rows; credit the original agencies listed below)