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 28500.00 cfs

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

Mon, Sep 08, 1986 3693.29 23,260,246 12610 28500 86.0 67.0 --

Sun, Sep 07, 1986 3693.50 23,293,000 13242 28500 92.0 66.0 --

Sat, Jul 27, 1985 3697.59 23,936,824 27531 28500 96.0 73.0 --

Sat, Apr 21, 1973 3592.04 11,222,158 16746 28500 61.0 38.0 --

Thu, May 20, 1965 3492.31 4,239,859 31360 28500 90.0 64.0 --

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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