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 28200.00 cfs

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

Fri, Jan 02, 1987 3684.00 21,847,000 15932 28200 58.0 29.0 --

Sun, Aug 31, 1986 3694.72 23,484,036 17422 28200 92.0 65.0 --

Sat, Aug 02, 1986 3699.40 24,225,984 19828 28200 99.0 74.0 --

Mon, Aug 05, 1985 3696.43 23,752,930 18971 28200 99.0 70.0 --

Wed, Jul 17, 1985 3698.30 24,050,008 21731 28200 95.0 71.0 --

Tue, Apr 17, 1973 3592.83 11,295,744 16727 28200 71.0 49.0 --

Sun, May 16, 1965 3491.46 4,195,699 26164 28200 82.0 56.0 --

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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