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 6494 cfs

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

Mon, Nov 21, 2022 3528.78 5,764,977 6494 8462 47.3 25.3 54.0

Fri, Sep 02, 2005 3602.57 11,996,967 6494 10576 90.0 66.0 80.0

Mon, May 13, 2002 3645.01 16,602,576 6494 10378 81.0 53.1 60.0

Sat, Nov 12, 1988 3683.47 21,768,026 6494 5870 78.0 45.0 --

Sun, Nov 20, 1966 3524.93 6,111,580 6494 7510 60.0 40.0 --

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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