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 inflow into Lake Powell was 6893 cfs

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

Wed, Feb 08, 2023 3522.67 5,411,777 6893 8680 52.3 34.5 44.0

Tue, Mar 18, 2014 3575.30 9,542,249 6893 8516 53.1 37.9 50.0

Sun, Sep 19, 2010 3633.80 15,282,782 6893 8106 96.1 61.0 72.0

Thu, Feb 25, 2010 3620.37 13,802,470 6893 11846 51.1 30.9 50.0

Mon, Nov 12, 2001 3661.56 18,697,704 6893 10315 62.1 43.0 63.0

Tue, Jul 18, 2000 3682.81 21,670,320 6893 8038 100.0 68.0 --

Mon, Sep 09, 1968 3547.45 7,616,013 6893 12700 96.0 64.0 --

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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