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 8399 cfs

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

Wed, Dec 14, 2011 3642.85 16,342,127 8399 20269 46.0 30.9 54.0

Sun, Dec 26, 1993 3659.67 18,449,424 8399 11500 48.0 27.0 --

Sun, Sep 30, 1990 3637.61 15,722,772 8399 4800 83.0 58.0 --

Fri, Sep 26, 1980 3688.17 22,632,522 8399 11600 84.0 50.0 --

Tue, Dec 24, 1968 3539.92 7,082,972 8399 10800 34.0 15.0 --

Sun, Dec 17, 1967 3526.90 6,227,030 8399 10700 32.0 17.0 --

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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