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 2640 cfs

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

Sat, Nov 04, 1978 3637.48 15,884,318 8772 2640 65.0 46.0 --

Fri, Apr 01, 1977 3651.25 17,592,060 6417 2640 62.0 16.0 --

Sun, Mar 27, 1977 3651.41 17,612,292 7080 2640 73.0 53.0 --

Sat, Jan 30, 1971 3600.58 12,073,515 12433 2640 58.0 30.0 --

Tue, Sep 22, 1964 3491.09 4,182,685 6495 2640 77.0 50.0 --

Fri, Sep 04, 1964 3490.22 4,137,439 5168 2640 94.0 62.0 --

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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