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 8230.00 cfs

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

Wed, Sep 17, 2003 3604.53 12,187,589 7859 8230 88.0 64.0 75.0

Sat, Oct 14, 1989 3664.37 19,071,780 7748 8230 80.0 52.0 --

Thu, Apr 20, 1989 3674.96 20,533,314 11551 8230 91.0 57.0 --

Sat, Oct 10, 1987 3687.55 22,379,058 8245 8230 86.0 52.0 --

Mon, Jan 20, 1975 3645.95 16,983,026 10043 8230 48.0 25.0 --

Sat, Nov 16, 1974 3650.15 17,535,116 10223 8230 61.0 39.0 --

Wed, Oct 02, 1974 3651.62 17,721,528 6130 8230 85.0 55.0 --

Fri, Jul 27, 1973 3643.50 16,734,857 25821 8230 97.0 72.0 --

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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