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 5591 cfs

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

Tue, May 07, 2002 3645.36 16,645,072 5591 10412 81.0 57.9 --

Thu, Mar 28, 2002 3647.86 16,950,822 5591 9936 73.9 44.1 50.0

Mon, Aug 19, 1996 3683.70 21,802,124 5591 15600 98.0 67.0 --

Wed, Aug 16, 1972 3612.09 13,214,118 5591 17700 91.0 69.0 --

Sat, Dec 31, 1966 3521.45 5,892,764 5591 11100 32.0 11.0 --

Sat, Sep 12, 1964 3490.22 4,137,439 5591 2840 95.0 66.0 --

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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