Anchor Reservoir Water Level

Wyoming · updated daily from the U.S. Bureau of Reclamation

6368.20 ft

Anchor Reservoir is above average for this time of year and rising (+0.62 ft in the last 7 days).

Change since yesterday: -0.11 ft

Reading as of 2026-08-14 · higher than 64% of August readings on record

Where Anchor Reservoir sits historically

TODAY 6368.2 ftRECORD LOW6359.89 ft2021-03-21RECORD HIGH6412.54 ft2023-06-20

Today's level compared with every reading in our 5.6-year record for this lake.

Since yesterday

-0.11 ft

7-day change

+0.62 ft

30-day change

+4.82 ft

1-year change

+5.23 ft

Last 30 days

2026-07-156362.3–6373.3 ft2026-08-14

Last 12 months

2025-08-146360.0–6379.5 ft2026-08-14

Full history (5.6 years)

2021-01-096354.9–6417.4 ft2026-08-13

Anchor Reservoir records and averages

Current level6368.20 ft
Record high6412.54 ft (2023-06-20)
Record low6359.89 ft (2021-03-21)
Average of all readings6371.82 ft
Data span5.6 years (2,000 readings)

Frequently asked questions

Is Anchor Reservoir full right now?

As of 2026-08-14, Anchor Reservoir sits at 6368.20 ft, which is above average for this time of year.Over the past 30 days the level has risen 4.82 ft.

What is the water level at Anchor Reservoir today?

The most recent reading is 6368.20 ft (2026-08-14), sourced from the U.S. Bureau of Reclamation. Readings on this page refresh automatically as the agency publishes new data.

What is the highest Anchor Reservoir has ever been?

The highest level in our records is 6412.54 ft on 2023-06-20. The lowest is 6359.89 ft on 2021-03-21. Our record covers about 5.6 years of readings.

Is Anchor Reservoir low for this time of year?

Compared with every August in our records, the current level is higher than 64% of them — above average for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

Why is Anchor Reservoir changing right now?

Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Anchor Reservoir has risen 4.82 ft over the past 30 days. For the operational reason on any given week, check the U.S. Bureau of Reclamation directly.

How much has Anchor Reservoir changed over the past year?

The level is +5.23 ft compared with this date last year (6368.20 ft today). The full-history chart above covers 5.6 years, with a record high of 6412.54 ft and a record low of 6359.89 ft.

Nearby lakes in Wyoming

Pilot Butte Reservoir water level
5451.39 ft · falling
Bull Lake Reservoir water level
5791.47 ft · falling
Boysen Reservoir water level
4711.74 ft · falling
Buffalo Bill Reservoir water level
5381.16 ft · falling
Big Sandy Reservoir water level
6743.25 ft · falling
Eden Reservoir water level
6705.07 ft · steady

Source: the U.S. Bureau of Reclamation. Readings are provisional and subject to revision by the publishing agency. All Wyoming lake levels.