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 7902 cfs

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

Sun, Oct 26, 2014 3605.83 12,315,139 7902 8429 80.1 55.9 65.0

Mon, Jan 20, 1997 3672.31 20,159,842 7902 18100 41.0 23.0 --

Mon, Jul 11, 1994 3664.66 19,110,580 7902 14700 105.0 74.0 --

Fri, Jul 20, 1990 3648.85 17,073,412 7902 15400 92.0 74.0 --

Thu, Sep 06, 1979 3680.13 21,465,036 7902 15800 98.0 62.0 --

Fri, Jan 03, 1975 3647.87 17,221,396 7902 16700 37.0 18.0 --

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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