Reservoirs

Well below normal

Lake Powell storage

Reservoir storage in Colorado (Upper) basin, Arizona / Utah

Last updated Jul 8, 2026

Lake Powell storage
acre-feet

Now 5.54M af, 33% below the 5-yr median.

Lake Powell Storage Status

Current Level: 5.54M acre-feet (33% below 5-yr median) As of: July 7, 2026

Summary

Lake Powell storage stands at 5.54M acre-feet, down slightly week-over-week (-0.9%) and month-over-month (-2.9%). The reservoir continues a pronounced year-over-year decline, sitting 28.9% below the same period last year. Most significantly, current levels remain 32.7% below the 5-year median, reflecting sustained lower water availability in the Colorado River Upper Basin.

Key Metrics

| Period | Current | Change | |--------|---------|--------| | Week over week | 5.54M af | -0.9% | | Month over month | 5.54M af | -2.9% | | Year over year | 5.54M af | -28.9% | | vs 5-yr median | 5.54M af | -32.7% |

Notes

  • Trend shows consistent draw-down across all time horizons
  • One-year decline of nearly 2.3M acre-feet signals ongoing stress on Upper Basin supplies
  • Current storage ~2.7M acre-feet below historical average—sustained drought conditions persist

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Data source: USBR Lake Powell daily elevations (364-point series); last updated 2026-07-07