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 outflow from Lake Powell was 6620.00 cfs

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

Mon, Sep 25, 2023 3573.61 8,793,047 7205 6620 83.6 49.1 75.0

Mon, Apr 02, 1979 3635.73 15,654,639 24644 6620 53.0 33.0 --

Sat, Nov 19, 1977 3635.01 15,620,642 5587 6620 68.0 30.0 --

Sun, Sep 15, 1974 3653.70 17,987,446 6527 6620 75.0 57.0 --

Mon, Apr 15, 1974 3651.55 17,712,622 8215 6620 67.0 40.0 --

Thu, Mar 07, 1974 3648.95 17,383,764 11055 6620 64.0 26.0 --

Sat, May 05, 1973 3592.78 11,291,083 24311 6620 80.0 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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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