LakeLevelIs Guernsey Reservoir low right now?
Guernsey Reservoir was at 4,395.61 ft on October 9, 2026. That is 1.47 ft above the typical level for October 9, within the normal range. Over the past week the lake has been rising about 0.08 ft a day.
Guernsey Reservoir on Oct 9 in past years
20254,398.0−2.4
20244,394.1+1.6
20234,391.9+3.7
20224,393.8+1.8
20214,381.5+14.1
20204,395.1+0.5
Daily levels, last two weeks
| Date | Level (ft) | Change |
|---|---|---|
| Oct 9 | 4,395.61 | +0.10 |
| Oct 8 | 4,395.51 | +0.06 |
| Oct 7 | 4,395.45 | +0.07 |
| Oct 6 | 4,395.38 | +0.08 |
| Oct 5 | 4,395.30 | +0.09 |
| Oct 4 | 4,395.21 | +0.06 |
| Oct 3 | 4,395.15 | +0.07 |
| Oct 2 | 4,395.08 | +0.12 |
| Oct 1 | 4,394.96 | +0.03 |
| Sep 30 | 4,394.93 | +0.09 |
| Sep 29 | 4,394.84 | +0.11 |
| Sep 28 | 4,394.73 | +0.07 |
| Sep 27 | 4,394.66 | +0.09 |
| Sep 26 | 4,394.57 | +0.11 |
About Guernsey Reservoir
- 10-year range
- 0.0 ft (June 15, 2021) to 4,416.9 ft (May 8, 2016)
- Operated by
- U.S. Bureau of Reclamation
- Data
- U.S. Bureau of Reclamation — Guernsey Reservoir Dam and Powerplant
- Datum
- NGVD29
Lakes near Guernsey Reservoir
- Glendo ReservoirWyoming · 16 mi 4,595.0 ft +1.1 wkNormal for this time of year
- Lake Alice and DamsWyoming · 62 mi 4,159.0 ft ±0.0 wkLower than usual for this time of year
- Little Lake Alice ReservoirWyoming · 65 mi 4,131.0 ft −0.1 wkNormal for this time of year
- Winters Creek LakeWyoming · 67 mi 4,118.9 ft −0.2 wkLower than usual for this time of year
- Lake MinatareWyoming · 70 mi 4,097.6 ft −0.0 wkLower than usual for this time of year
- Box Butte ReservoirWyoming · 87 mi 3,983.9 ft +0.2 wkLower than usual for this time of year
Questions
Is Guernsey Reservoir low right now?
Guernsey Reservoir was at 4,395.61 ft on October 9, 2026. That is 1.47 ft above the typical level for October 9, within the normal range. Over the past week the lake has been rising about 0.08 ft a day.
How often is the Guernsey Reservoir level updated?
The operator reports once a day, a day or two behind. This page refreshes several times a day; the time of the latest reading is shown next to the level.
Where does this data come from?
U.S. Bureau of Reclamation (Guernsey Reservoir Dam and Powerplant). Readings are provisional and can be revised.