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 6267 cfs

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

Sun, Sep 06, 2020 3598.95 11,650,187 6267 9627 105.0 71.0 78.0

Tue, Feb 18, 2014 3576.58 9,649,386 6267 11174 64.9 42.1 46.0

Thu, Jan 31, 2013 3604.42 12,176,834 6267 13056 51.1 32.0 45.0

Tue, Aug 21, 2007 3604.95 12,228,693 6267 13304 99.0 69.1 81.0

Wed, Apr 17, 2002 3646.75 16,814,560 6267 10383 73.9 52.0 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