Great Salt Lake water level today
Great Salt Lake is at 4,189.80 ft, as of October 18, 2026.
- Past week: up 0.10 ft
- Compared with a year ago: down 1.40 ft
- 2.04 ft below the 10-year average for October 18 (4,191.84 ft)
- Lower on this date in 1 of the 14 years on record
Water level4,189.80 ftelevation, feet
vs. normal-2.04 ft10-year average for today
7-day change+0.10 ft
30-day change-0.10 ft
1-year change-1.40 ft
Past 12 months
Past 12 monthsYear before
Last 30 days
| Date | Level (ft) |
|---|---|
| Oct 18 | 4,189.80 |
| Oct 17 | 4,189.80 |
| Oct 16 | 4,189.80 |
| Oct 15 | 4,189.80 |
| Oct 14 | 4,189.80 |
| Oct 13 | 4,190.00 |
| Oct 12 | 4,189.80 |
| Oct 11 | 4,189.70 |
| Oct 10 | 4,189.40 |
| Oct 9 | 4,189.60 |
| Oct 8 | 4,189.70 |
| Oct 7 | 4,189.70 |
| Oct 6 | 4,189.70 |
| Oct 5 | 4,189.70 |
| Oct 4 | 4,189.70 |
| Oct 3 | 4,189.70 |
| Oct 2 | 4,189.70 |
| Oct 1 | 4,189.70 |
| Sep 30 | 4,189.70 |
| Sep 29 | 4,189.70 |
| Sep 28 | 4,189.60 |
| Sep 27 | 4,189.70 |
| Sep 26 | 4,189.80 |
| Sep 25 | 4,189.70 |
| Sep 24 | 4,189.80 |
| Sep 23 | 4,189.80 |
| Sep 22 | 4,189.70 |
| Sep 21 | 4,189.80 |
| Sep 20 | 4,189.80 |
| Sep 19 | 4,189.80 |
| Sep 18 | 4,189.90 |
This date in past years
| Date | Level (ft) | Today vs. then |
|---|---|---|
| October 18, 2025 | 4,191.20 | -1.40 |
| October 18, 2024 | 4,192.70 | -2.90 |
| October 18, 2023 | 4,192.20 | -2.40 |
| October 18, 2022 | 4,188.80 | +1.00 |
| October 18, 2021 | 4,190.20 | -0.40 |
| October 18, 2020 | 4,192.30 | -2.50 |
| October 18, 2019 | 4,193.20 | -3.40 |
| October 18, 2018 | 4,192.00 | -2.20 |
| October 18, 2017 | 4,193.50 | -3.70 |
| October 18, 2016 | 4,192.32 | -2.52 |
Records
Highest level on record: 4,198.95 ft (March 7, 2012). Lowest: 4,188.50 ft (November 7, 2022). Records in this series start October 23, 2011.
About these numbers
- Levels are daily mean water-surface elevations measured by the U.S. Geological Survey at this lake's gauge
- Recent readings are provisional and can be revised once USGS reviews them
- "vs. normal" compares today with the average for the same calendar date over the last 10 years of this gauge's record
- Latest reading: October 18, 2026. Official USGS page for this gauge