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 inflow into Lake Powell was 8858 cfs

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

Fri, Dec 20, 1996 3675.64 20,630,028 8858 17000 46.0 23.0 --

Tue, Jan 16, 1996 3679.53 21,189,688 8858 16200 53.0 29.0 --

Sun, Oct 27, 1991 3627.24 14,546,399 8858 7790 60.0 46.0 --

Fri, Mar 27, 1970 3571.32 9,446,229 8858 10500 64.0 43.0 --

Fri, Sep 20, 1968 3545.91 7,505,232 8858 9680 88.0 65.0 --

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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