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 7967 cfs

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

Fri, Jan 06, 2023 3524.67 5,525,950 7967 8221 49.8 32.9 48.0

Sun, Mar 09, 2014 3575.53 9,561,442 7967 7774 64.0 39.9 49.0

Tue, Dec 01, 2009 3630.98 14,962,880 7967 14558 50.0 28.9 57.0

Thu, Nov 26, 2009 3631.41 15,011,348 7967 11094 51.1 30.0 58.0

Mon, Jan 07, 2002 3655.41 17,898,522 7967 13661 48.0 32.0 50.0

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

Sun, Sep 07, 1975 3670.76 20,247,584 7967 14300 81.0 66.0 --

Wed, Sep 11, 1963 412,400 7967 1010 95.0 67.0 --

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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