Lake Powell Water Database

powell
powell

The earliest data is from Monday, March 11th, 1963
The most recent data is from Wednesday, October 1st, 2025

Days where inflow into Lake Powell was 8785 cfs

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

Sun, Oct 10, 1993 3662.33 18,799,602 8785 7960 75.0 50.0 --

Mon, Jan 11, 1993 3615.14 13,254,634 8785 13300 45.0 34.0 --

Fri, Jun 30, 1989 3677.50 20,896,000 8785 14500 98.0 64.0 --

Sun, Jan 24, 1988 3683.54 21,778,466 8785 14300 47.0 20.0 --

Thu, Oct 15, 1987 3687.41 22,357,896 8785 11500 72.0 45.0 --

Mon, Oct 12, 1981 3672.50 20,308,786 8785 8540 66.0 47.0 --

Mon, Jan 29, 1979 3629.33 14,921,634 8785 20200 28.0 14.0 --

Sun, Oct 17, 1971 3613.78 13,411,310 8785 8290 57.0 42.0 --

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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