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 outflow from Lake Powell was 8200 cfs

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

Sun, Nov 12, 2023 3572.27 8,690,266 6929 8200 59.8 27.3 64.0

Sun, Sep 05, 2021 3549.16 7,525,199 7179 8200 95.0 70.0 80.0

Sat, Sep 13, 2003 3604.56 12,190,526 19890 8200 82.9 63.0 77.0

Sun, Apr 10, 1988 3681.79 21,520,136 10105 8200 68.0 35.0 --

Tue, Mar 23, 1982 3663.94 19,102,414 10536 8200 60.0 38.0 --

Fri, Apr 12, 1974 3651.40 17,693,540 8849 8200 72.0 24.0 --

Wed, Feb 12, 1969 3541.08 7,151,868 10450 8200 n/a n/a --

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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