Ririe Reservoir water level history
Daily records since 1990 · Level today: 5,063.40 ft
Highest on record
5,126.11 ft
Jun 27, 2006
Lowest on record
0.00 ft
Feb 2, 2004
Today
5,063.40 ft
Oct 21, 2026
Years of data
37
since 1990
In short
Across 36 complete years, 2004 had the lowest average level (5,062.08 ft) and 2017 the highest (5,100.03 ft).
On average the lake is lowest in November (5,077.76 ft) and highest in June (5,105.41 ft).
Ririe Reservoir 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.
- 2004
- 1991
- 1993
- 1998
- 1994
Yearly highs and lows
| Year | Average | Low | Low date | High | High date |
|---|---|---|---|---|---|
| 2026 (290 days) | 5,088.20 | 5,063.08 | Oct 15 | 5,098.78 | May 5 |
| 2025 | 5,096.17 | 5,081.51 | Oct 29 | 5,112.81 | May 27 |
| 2024 | 5,096.69 | 5,081.77 | Oct 30 | 5,113.15 | May 1 |
| 2023 | 5,093.60 | 5,081.85 | Nov 1 | 5,112.81 | Jun 17 |
| 2022 | 5,089.39 | 5,081.83 | Oct 28 | 5,100.28 | May 20 |
| 2021 | 5,091.25 | 5,081.78 | Oct 29 | 5,104.06 | Jun 4 |
| 2020 | 5,098.51 | 5,081.96 | Nov 3 | 5,114.03 | May 26 |
| 2019 | 5,098.28 | 5,081.87 | Oct 31 | 5,113.36 | Jun 3 |
| 2018 | 5,099.38 | 5,081.96 | Nov 1 | 5,113.76 | Jun 26 |
| 2017 | 5,100.03 | 5,081.43 | Nov 29 | 5,113.18 | May 30 |
| 2016 | 5,096.81 | 5,081.96 | Nov 1 | 5,113.16 | May 22 |
| 2015 | 5,091.16 | 5,080.88 | Oct 13 | 5,101.91 | Jun 14 |
| 2014 | 5,093.42 | 5,081.45 | Nov 4 | 5,106.38 | May 29 |
| 2013 | 5,091.27 | 5,081.40 | Oct 1 | 5,103.61 | May 31 |
| 2012 | 5,097.10 | 5,081.74 | Nov 20 | 5,113.33 | May 30 |
| 2011 | 5,096.33 | 5,076.29 | Nov 15 | 5,115.08 | May 17 |
| 2010 | 5,093.17 | 5,076.56 | Nov 5 | 5,112.49 | Jul 1 |
| 2009 | 5,094.83 | 5,076.49 | Nov 18 | 5,113.67 | Jun 11 |
| 2008 | 5,091.37 | 5,076.81 | Nov 19 | 5,108.60 | Jun 18 |
| 2007 | 5,088.34 | 5,076.69 | Sep 26 | 5,102.08 | May 16 |
| 2006 | 5,094.69 | 5,076.72 | Nov 21 | 5,126.11 | Jun 27 |
| 2005 | 5,085.44 | 5,071.57 | Jan 1 | 5,099.02 | Jun 18 |
| 2004 | 5,062.08 | 0.00 | Feb 2 | 5,087.46 | Jun 15 |
| 2003 | 5,075.77 | 5,065.15 | Sep 26 | 5,087.21 | May 13 |
| 2002 | 5,075.90 | 5,068.58 | Jan 1 | 5,086.10 | May 29 |
| 2001 | 5,079.71 | 5,064.10 | Sep 29 | 5,092.90 | May 7 |
| 2000 | 5,093.75 | 5,077.39 | Nov 15 | 5,108.20 | May 23 |
| 1999 | 5,095.46 | 5,076.19 | Nov 25 | 5,113.33 | Jun 4 |
| 1998 | 5,095.50 | 5,000.46 | Jan 7 | 5,113.07 | May 26 |
| 1997 | 5,096.50 | 5,074.87 | Dec 6 | 5,114.43 | May 19 |
| 1996 | 5,096.94 | 5,077.00 | Nov 19 | 5,113.91 | May 30 |
| 1995 | 5,090.46 | 5,058.03 | Jan 2 | 5,112.94 | Jul 8 |
| 1994 | 5,077.89 | 5,051.69 | Sep 26 | 5,098.86 | May 16 |
| 1993 | 5,085.76 | 5,000.00 | Jan 2 | 5,113.90 | May 26 |
| 1992 | 5,075.21 | 5,055.65 | Nov 3 | 5,089.79 | Apr 23 |
| 1991 | 5,089.67 | 4,980.95 | Feb 8 | 5,106.09 | Jun 8 |
| 1990 | 5,086.85 | 5,077.14 | Nov 2 | 5,097.26 | May 12 |
Levels in feet. Partial years show the number of days with data.
Monthly averages
| Month | Average | Lowest | Highest |
|---|---|---|---|
| January | 5,081.01 | 5,000.00 | 5,090.00 |
| February | 5,078.47 | 0.00 | 5,092.94 |
| March | 5,086.30 | 5,063.00 | 5,101.10 |
| April | 5,093.09 | 5,067.91 | 5,112.95 |
| May | 5,103.32 | 5,080.06 | 5,115.08 |
| June | 5,105.41 | 5,084.09 | 5,126.11 |
| July | 5,103.77 | 5,082.29 | 5,113.65 |
| August | 5,099.83 | 5,056.59 | 5,112.92 |
| September | 5,091.92 | 5,051.69 | 5,110.91 |
| October | 5,082.76 | 5,052.15 | 5,109.99 |
| November | 5,077.76 | 5,052.12 | 5,089.28 |
| December | 5,079.13 | 5,055.26 | 5,087.51 |
Download
Daily levels as CSV (13,427 rows; credit the original agencies listed below)