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 21800.00 cfs

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

Thu, Jul 03, 1986 3695.70 23,637,892 49112 21800 n/a n/a --

Wed, Sep 18, 1985 3686.98 22,292,998 14516 21800 87.0 61.0 --

Sun, Mar 18, 1984 3675.10 20,584,080 19160 21800 n/a n/a --

Tue, Jan 03, 1984 3684.73 21,987,456 12168 21800 48.0 27.0 --

Thu, Aug 07, 1975 3674.46 20,770,372 16565 21800 101.0 76.0 --

Mon, Jul 21, 1975 3674.82 20,821,850 37143 21800 101.0 76.0 --

Wed, Jul 09, 1975 3671.92 20,410,030 53340 21800 95.0 71.0 --

Sat, Jan 06, 1973 3604.93 12,464,196 11312 21800 30.0 17.0 --

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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