Hyrum Reservoir Water Level Today

Daily level, distance to full pool and history for Hyrum Reservoir, on the Little Bear River in Utah.

Updated · Source: Bureau of ReclamationReclamation

Water level

4,644.53ft

msl · Daily reading for Nov 8, 2026

  • 27.47 ftbelow full pool (4,672.0 ft)
  • +0.26 ftin 24 h+2.18 ft in 7 days+9.44 ft in 30 days
4,6404,6454,6504,6554,6604,6654,6704,6754,6804,6404,6454,6504,6554,6604,6654,6704,6754,6804,6404,6454,6504,6554,6604,6654,6704,6754,680
  • Full pool
  • 1 yr ago

Is Hyrum Reservoir full?

No. Hyrum Reservoir is 27.47 ft below full pool (4,672.0 ft). It is 3.26 ft lower than a year ago (4,647.79 ft on Nov 8, 2025).

Hyrum Reservoir level history

View data table
DateLevel (ft)
Nov 8, 20264,644.53
Nov 7, 20264,644.27
Nov 6, 20264,644.00
Nov 5, 20264,643.72
Nov 4, 20264,643.43
Nov 3, 20264,643.13
Nov 2, 20264,642.78
Nov 1, 20264,642.35
Oct 31, 20264,641.95
Oct 30, 20264,641.67
Oct 29, 20264,641.39
Oct 28, 20264,641.12
Oct 27, 20264,640.82
Oct 26, 20264,640.53
Oct 25, 20264,640.24
Oct 24, 20264,639.96
Oct 23, 20264,639.65
Oct 22, 20264,639.25
Oct 21, 20264,638.91
Oct 20, 20264,638.65
Oct 19, 20264,638.38
Oct 18, 20264,638.11
Oct 17, 20264,637.83
Oct 16, 20264,637.55
Oct 15, 20264,637.26
Oct 14, 20264,636.96
Oct 13, 20264,636.61
Oct 12, 20264,636.20
Oct 11, 20264,635.70
Oct 10, 20264,635.33
Oct 9, 20264,635.09
  • Hyrum Reservoir level
  • Full pool 4,672.0 ft
  • Above full pool
Source: Reclamation · Daily readings since 1974

Hyrum Reservoir on Nov 8 in past years

Hyrum Reservoir water level on Nov 8 in past years
YearLevel (ft)vs todayvs full pool
2026today4,644.53—−27.47 ft
20254,647.79+3.26−24.21 ft
20244,661.10+16.57−10.90 ft
20234,670.16+25.63−1.84 ft
20224,655.46+10.93−16.54 ft
20214,648.29+3.76−23.71 ft
20204,657.38+12.85−14.62 ft
20194,661.31+16.78−10.69 ft
20184,654.31+9.78−17.69 ft
20174,661.68+17.15−10.32 ft
20164,654.03+9.50−17.97 ft

Today’s level is the lowest for this date since 2003.

Lake facts

Full pool (conservation pool)
4,672.0 ft msl
Highest since 1974
4,674.00 ftMay 31, 1986
Lowest since 1974
4,629.60 ftSep 24, 1994
Data since
Jan 31, 1974
Dam
Hyrum Damcompleted 1935
River
Little Bear River
Owned by
Bureau of Reclamation
Dam location
Cache County
Gauge location
41.6212, −111.8610

Dam, river and owner from the National Inventory of Dams (USACE). Records cover Jan 31, 1974 to today (daily averages).

Hyrum Reservoir map and depth

  • Dam
  • Level gauge
Shoreline © OpenStreetMap contributors · Open the full map
Surface area
about 450 acresmeasured on the OpenStreetMap outline
Height of Hyrum Dam
116 ftNational Inventory of Dams

The outline shows the mapped shoreline, not today’s water line: when the lake is low, the water stands back from it.

Weather on the lake

  1. Today58°FHighLow 37°FS 5 mphPartly Sunny
  2. Tonight37°FLowSSE 1–5 mphMostly Cloudy
  3. Tuesday55°FHighLow 35°FSW 3 mphSunny
  4. Wednesday56°FHighLow 36°FN 0–3 mphSunny
  5. Thursday58°FHighLow 37°FN 0–3 mphSunny
  6. Friday57°FHighLow 38°FSE 0–3 mphMostly Sunny
  7. Saturday56°FHighLow 39°FS 0–5 mphMostly Sunny

Forecast: National Weather Service for the dam area (41.62, −111.86). Wind speeds are forecasts, not measurements.

Nearby lakes

Quick answers

What is the full pool level of Hyrum Reservoir?
4,672.0 ft above mean sea level, the top of its conservation pool. Above it, water is released or flows over the spillway of Hyrum Dam.
How much does Hyrum Reservoir need to be full?
Hyrum Reservoir needs 27.47 ft more water to reach full pool (4,672.0 ft), as of Nov 8, 2026.
Is Hyrum Reservoir rising or falling?
It is rising: +2.18 ft in the last 7 days and +0.26 ft in 24 hours, to 4,644.53 ft on Nov 8, 2026 (Bureau of Reclamation).
When was Hyrum Reservoir last full?
It was last at or above full pool (4,672.0 ft) on May 20, 2026. On Nov 8, 2026 it was 27.47 ft below.
What is the highest level in our data?
Hyrum Reservoir reached 4,674.00 ft on May 31, 1986. The lowest was 4,629.60 ft on Sep 24, 1994 (Reclamation data since 1974; older records are not in this data set).
How much has Hyrum Reservoir changed in the last year?
In the last 12 months it ranged from 4,630.32 ft (Sep 21, 2026) to 4,672.16 ft (May 18, 2026), a swing of 41.84 ft.
How often is this page updated?
This page is updated every day with the daily reading of the Bureau of Reclamation, which is usually published one or two days later. The last reading is from Nov 8, 2026.

Where this data comes from

Daily elevation from the Bureau of Reclamation (data.usbr.gov). Updated once a day. Weather from the National Weather Service. Dam details from the National Inventory of Dams.

Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.