Lake Powell Water Database

powell
powell

The earliest data is from Monday, March 11th, 1963
The most recent data is from Wednesday, October 1st, 2025

Days where outflow from Lake Powell was 9040 cfs

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

Tue, Oct 18, 1994 3653.88 17,703,506 8893 9040 59.0 42.0 --

Thu, Nov 29, 1990 3636.28 15,568,483 6756 9040 46.0 23.0 --

Sat, Sep 30, 1989 3665.20 19,183,394 5939 9040 93.0 54.0 --

Sat, May 22, 1982 3671.90 20,193,628 22508 9040 86.0 59.0 --

Wed, Oct 29, 1980 3685.54 22,235,706 9261 9040 60.0 35.0 --

Sat, Apr 22, 1978 3625.69 14,538,894 15081 9040 75.0 40.0 --

Tue, Feb 18, 1969 3541.67 7,192,805 13207 9040 52.0 31.0 --

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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