Lake Powell Water Database

powell
powell

The earliest data is from Monday, March 11th, 1963
The most recent data is from Tuesday, September 30th, 2025

Days where outflow from Lake Powell was 8640 cfs

DATE MEASURED ELEVATION CONTENT INFLOW OUTFLOW HIGH TEMP LOW TEMP WATER TEMP

Mon, Nov 21, 1994 3652.82 17,569,304 7253 8640 49.0 28.0 --

Sun, Sep 12, 1993 3663.74 18,987,314 8820 8640 97.0 70.0 --

Thu, Jan 25, 1990 3656.03 17,977,874 5305 8640 n/a 25.0 --

Thu, Jun 02, 1988 3688.47 22,518,906 27370 8640 90.0 40.0 --

Sat, Feb 19, 1983 3682.11 21,630,160 12047 8640 60.0 34.0 --

Sat, Sep 18, 1982 3686.88 22,373,520 17486 8640 85.0 60.0 --

Sat, Dec 13, 1975 3667.68 19,819,490 12517 8640 50.0 39.0 --

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Measurements are taken at 11:59 pm of the date listed
Temperature data is from Wahweap, AZ
Water temperature data is from wayneswords.com*
CHANGE represents water elevation change from previous day

Units used in each measurement:
Elevation - Feet above sea level
Change - Feet difference over previous measurement
Content - Acre Feet
Inflow - Acre Feet per day
Outflow - Acre Feet per day
All Temps - Degrees Farhenheit
The Water Year runs from October 1 to September 30 of the next year
Acre Feet = * Flow CFS
TP = Total Precipitation

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Water data courtesy of US Bureau of Reclamation
*Air temp data is sourced from (Prev 24 Hr Extremes): Weather
Weather forecast for
All data is provisional and subject to review and modification
USBR Source Data