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 7305 cfs

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

Sun, Aug 20, 1989 3671.50 20,046,500 7305 7450 85.0 66.0 --

Tue, Aug 05, 1980 3695.34 23,742,428 7305 22600 100.0 67.0 --

Thu, Oct 11, 1979 3677.27 21,049,322 7305 15600 82.0 55.0 --

Sun, Feb 27, 1977 3651.58 17,633,822 7305 9120 54.0 31.0 --

Sat, Jan 21, 1967 3517.84 5,661,869 7305 10800 53.0 31.0 --

Sun, Apr 14, 1963 7305 1020 82.0 52.0 --

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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