Lake Powell Water Database

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powell

The earliest data is from Monday, March 11th, 1963
The most recent data is from Tuesday, September 30th, 2025

Days where Lake Powell had 12,307,264 acre feet of water storage

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

Sun, Jul 22, 2018 3605.75 12,307,264 4171 11364 n/a n/a --

Sun, May 07, 2017 3605.75 12,307,264 18695 9131 n/a n/a --

Tue, Oct 28, 2014 3605.75 12,307,264 7328 9999 n/a n/a --

Thu, Oct 02, 2014 3605.75 12,307,264 15500 10132 n/a n/a --

Thu, Sep 04, 2014 3605.75 12,307,264 9078 10411 n/a n/a --

Tue, Aug 09, 2005 3605.75 12,307,264 10212 14628 n/a n/a --

Wed, Apr 16, 2003 3605.75 12,307,264 6053 10514 n/a n/a --

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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