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 8023.00 cfs

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

Tue, Sep 01, 2009 3637.41 15,699,339 8023 9963 91.0 73.0 77.0

Tue, Jan 08, 2008 3593.52 11,142,173 8023 13388 37.9 26.1 49.0

Fri, Mar 31, 2006 3588.71 10,704,126 8023 9143 57.9 39.9 51.0

Tue, Sep 02, 1975 3671.58 20,362,470 8023 18900 93.0 67.0 --

Wed, Sep 20, 1967 3528.91 6,356,105 8023 10900 81.0 53.0 --

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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