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 9490 cfs

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

Sun, Nov 26, 2017 3625.53 14,358,292 8920 9490 64.0 43.0 59.0

Sat, Sep 17, 1994 3655.33 17,888,310 8211 9490 85.0 61.0 --

Wed, Mar 24, 1993 3614.97 13,237,077 22008 9490 76.0 45.0 --

Tue, Jul 04, 1989 3677.24 20,858,558 7967 9490 104.0 65.0 --

Mon, Jan 06, 1986 3687.27 22,336,772 14166 9490 50.0 30.0 --

Sun, Mar 16, 1980 3675.38 20,747,410 12590 9490 64.0 40.0 --

Tue, Jun 20, 1978 3645.42 16,838,178 58122 9490 n/a 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