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 9330 cfs

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

Sun, May 28, 2017 3617.26 13,474,968 43909 9330 84.0 60.0 67.0

Wed, Mar 08, 1995 3644.91 16,590,441 14116 9330 55.0 34.0 --

Wed, Oct 09, 1991 3628.19 14,651,178 6637 9330 89.0 58.0 --

Mon, Apr 08, 1991 3627.36 14,559,612 6822 9330 76.0 40.0 --

Sun, Jun 14, 1970 3591.54 11,229,444 52412 9330 83.0 54.0 --

Tue, Jan 27, 1970 3569.66 9,308,302 8627 9330 63.0 34.0 --

Wed, Sep 13, 1967 3529.38 6,386,811 10649 9330 92.0 66.0 --

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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