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 6862 cfs

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

Mon, Dec 14, 2009 3628.86 14,725,561 6862 15276 45.0 30.0 54.0

Wed, Feb 15, 2006 3591.83 10,986,990 6862 14841 62.1 33.1 47.0

Thu, Oct 29, 1992 3621.18 13,888,646 6862 8570 n/a 48.0 --

Sat, Oct 20, 1990 3637.25 15,681,000 6862 7950 59.0 41.0 --

Wed, Oct 10, 1990 3637.34 15,691,450 6862 8400 69.0 45.0 --

Tue, Jul 12, 1966 3543.46 7,354,665 6862 10600 100.0 71.0 --

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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