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 6740 cfs

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

Sat, Sep 05, 1981 3672.99 20,378,060 6454 6740 82.0 64.0 --

Mon, May 25, 1981 3677.49 21,018,936 8590 6740 86.0 66.0 --

Sun, Jun 18, 1978 3644.20 16,688,794 59533 6740 n/a 63.0 --

Thu, Nov 08, 1973 3645.72 17,007,844 11514 6740 70.0 44.0 --

Sat, Mar 27, 1965 3491.51 4,198,299 12112 6740 68.0 39.0 --

Sun, Dec 13, 1964 3491.55 4,206,603 8305 6740 45.0 21.0 --

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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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Copyright Summit Technologies, Inc.
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