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 Lake Powell elevation was 3658.69 feet above Sea Level

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

Tue, May 24, 1994 3658.69 18,321,660 31261.00 10900.00 91.0 62.0 --

Mon, Jan 10, 1994 3658.69 18,321,660 9081.00 14500.00 47.0 28.0 --

Wed, Nov 24, 1976 3658.69 18,579,920 9074.00 15200.00 57.0 33.0 --

Tue, Aug 20, 1974 3658.69 18,637,226 6239.00 24200.00 95.0 68.0 --

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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