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 8299 cfs

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

Tue, Apr 14, 2009 3609.76 12,706,157 8299 10323 72.0 55.9 55.0

Sun, Dec 03, 2006 3606.52 12,383,204 8299 11974 37.9 21.0 54.0

Sat, Jan 16, 1988 3684.27 21,887,232 8299 10900 50.0 30.0 --

Fri, Jan 07, 1983 3683.97 21,905,762 8299 14400 51.0 28.0 --

Fri, Oct 27, 1978 3637.47 15,883,143 8299 10600 65.0 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