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 8162.00 cfs

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

Sun, Aug 30, 2009 3637.61 15,722,647 8162 12464 98.1 71.1 79.0

Tue, Oct 16, 2007 3601.31 11,875,490 8162 10006 70.0 50.0 65.0

Sat, Aug 01, 1992 3630.44 14,902,493 8162 14600 100.0 68.0 --

Sun, Jan 17, 1988 3684.34 21,897,674 8162 10200 49.0 32.0 --

Mon, Feb 10, 1975 3645.79 16,963,330 8162 11200 55.0 40.0 --

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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