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 8136.00 cfs

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

Thu, Oct 28, 2021 3544.31 7,184,918 6973 8136 66.0 43.0 63.0

Wed, Nov 14, 2018 3587.58 10,602,853 6187 8136 52.0 31.0 60.0

Tue, Oct 08, 2013 3591.09 10,919,468 6150 8136 78.1 50.0 67.0

Fri, Nov 28, 2003 3600.63 11,810,262 5193 8136 41.0 27.0 58.0

Wed, Oct 29, 2003 3602.10 11,951,559 5853 8136 80.1 50.0 68.0

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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