Coralville Lake water level: Coralville 
4.3 ft high
Coralville Lake is 4.3 ft above full pool, higher than usual for early November. The Coralville Lake Reservoir MET Station gauge read 687.32 ft at 8:00 AM CST, November 4, 2026.
How Coralville stands today
- 687.32 Feet above sea level8:00 AM CST, November 4, 2026, NGVD29 datum.
- +4.32 Feet from full poolFull pool today is 683.00 ft.
- +0.86 Feet from normal for Nov 4Median of 2015–2025 is 686.46 ft. Today ranks in the 82nd percentile.
- +0.77 Feet from a year ago686.55 ft on November 4, 2025.
- +1.90 Feet over 30 days+1.09 ft over the past 7 days.
The past year, day by day
The shaded band is where Coralville usually sits on each date: the middle 80% of years from 2015 to 2025. The blue line is the past 12 months; the sand line is the 12 months before. Hover or use the arrow keys to read any day.
- Past 12 months
- The 12 months before
- Normal range (middle 80% of years)
- Median
- Full pool
Monthly average since 2014
Readings for the last 30 days
| Date | Level (ft) | Normal (ft) |
|---|---|---|
| November 4, 2026 | 687.23 | 686.46 |
| November 3, 2026 | 686.92 | 686.42 |
| November 2, 2026 | 686.67 | 686.37 |
| November 1, 2026 | 686.58 | 686.32 |
| October 31, 2026 | 686.46 | 686.29 |
| October 30, 2026 | 686.32 | 686.26 |
| October 29, 2026 | 686.31 | 686.17 |
| October 28, 2026 | 686.23 | 686.00 |
| October 27, 2026 | 686.14 | 685.91 |
| October 26, 2026 | 686.23 | 685.89 |
| October 25, 2026 | 686.30 | 685.90 |
| October 24, 2026 | 686.28 | 685.89 |
| October 23, 2026 | 686.20 | 685.86 |
| October 22, 2026 | 686.18 | 685.82 |
| October 21, 2026 | 686.22 | 685.77 |
| Date | Level (ft) | Normal (ft) |
|---|---|---|
| October 20, 2026 | 686.15 | 685.70 |
| October 19, 2026 | 686.16 | 685.64 |
| October 18, 2026 | 686.06 | 685.58 |
| October 17, 2026 | 686.01 | 685.54 |
| October 16, 2026 | 686.04 | 685.51 |
| October 15, 2026 | 685.96 | 685.49 |
| October 14, 2026 | 685.91 | 685.47 |
| October 13, 2026 | 686.29 | 685.43 |
| October 12, 2026 | 686.62 | 685.40 |
| October 11, 2026 | 686.42 | 685.43 |
| October 10, 2026 | 686.10 | 685.42 |
| October 9, 2026 | 685.78 | 685.37 |
| October 8, 2026 | 685.50 | 685.31 |
| October 7, 2026 | 685.45 | 685.28 |
| October 6, 2026 | 685.43 | 685.26 |
Is the water above your dock?
Enter the elevation of your dock, ramp end or a mark on your shoreline, in feet above sea level (NGVD29, the datum the Army Corps of Engineers uses for this gauge). You will see how far the water is above or below it today, and how often it dipped below it in each month since 2016.
| Month | Low year (10th %) | Median | High year (90th %) | Days above your mark |
|---|---|---|---|---|
| January | 682.77 | 683.45 | 683.78 | — |
| February | 683.32 | 683.51 | 683.84 | — |
| March | 679.44 | 683.32 | 684.00 | — |
| April | 679.26 | 682.98 | 684.09 | — |
| May | 679.70 | 683.59 | 684.64 | — |
| June | 683.36 | 683.84 | 696.01 | — |
| July | 683.33 | 683.63 | 687.61 | — |
| August | 683.29 | 683.62 | 684.11 | — |
| September | 683.33 | 684.32 | 687.04 | — |
| October | 684.70 | 685.82 | 700.34 | — |
| November | 682.92 | 686.51 | 687.28 | — |
| December | 682.74 | 683.78 | 686.55 | — |
Other Iowa lakes, lowest first
| Lake | Level (ft) | Vs full pool |
|---|---|---|
 Saylorville Lake | 838.44 | 2.4 ft above |
| Rathbun Lake | 906.30 | 111.9% full |
 Lake Red Rock | 747.37 | 5.4 ft above |
Coralville questions
What is full pool at Coralville Lake?
Full pool at Coralville Lake is 683.00 ft above sea level today. The agency's own term for it is “top of conservation.”
Is Coralville Lake full right now?
It is over full: 4.3 ft above full pool, with flood storage up to 712.00 ft. Water above full pool is flood water the dam is holding back and releasing over time.
Is Coralville Lake lower than normal for early November?
No, it is higher than normal. The median level on Nov 4 across 2015–2025 is 686.46 ft, and today's 687.32 ft is +0.86 ft from it. In 8 of 10 years the level on this date fell between 685.59 and 688.20 ft.
How does Coralville Lake compare with last year?
A year ago, on November 4, 2025, it stood at 686.55 ft. It is 0.77 ft higher now.
What are the highest and lowest levels since 2014?
In the daily record we hold, which starts in 2014, the highest daily level was 710.93 ft on October 18, 2018 and the lowest was 678.76 ft on March 25, 2016.
How often is this page updated?
We pull new readings from the U.S. Army Corps of Engineers several times a day. This page was last rebuilt on Wed, 04 Nov 2026 15:13:17 UTC. Readings are provisional and can be revised by the agency.