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 10445 cfs

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

Mon, Oct 26, 2015 3606.52 12,383,202 10445 9897 68.0 52.0 69.0

Thu, Mar 25, 1982 3663.90 19,097,074 10445 13600 65.0 39.0 --

Fri, Jan 26, 1973 3601.94 12,168,131 10445 21100 37.0 22.0 --

Tue, Mar 02, 1965 3491.90 4,218,553 10445 9530 45.0 27.0 --

Fri, Jan 29, 1965 3491.52 4,198,819 10445 9730 54.0 32.0 --

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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