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 8340 cfs

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

Mon, Sep 09, 2002 3626.98 14,517,386 6513 8340 77.0 60.1 77.0

Tue, May 25, 1993 3640.02 16,005,429 74492 8340 93.0 61.0 --

Sat, Feb 03, 1990 3655.40 17,897,488 5585 8340 51.0 20.0 --

Sun, May 17, 1981 3677.64 21,040,578 8066 8340 73.0 43.0 --

Fri, May 08, 1981 3677.43 21,010,264 14754 8340 84.0 48.0 --

Sun, Jul 25, 1976 3670.82 20,225,616 7879 8340 97.0 70.0 --

Sun, Apr 30, 1967 3507.32 5,044,058 6265 8340 56.0 39.0 --

Mon, Oct 24, 1966 3527.96 6,304,967 8656 8340 71.0 44.0 --

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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