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 9151.00 cfs

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

Sun, Mar 15, 2015 3591.85 10,988,812 9151 9428 58.0 36.0 53.0

Sun, Jan 11, 2015 3595.89 11,362,139 9151 12589 42.1 33.8 48.0

Sun, Oct 10, 2010 3634.35 15,345,736 9151 8057 72.0 50.0 72.0

Tue, Aug 06, 1991 3634.91 15,410,640 9151 14400 86.0 65.0 --

Wed, Dec 11, 1968 3540.92 7,152,480 9151 11100 58.0 27.0 --

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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