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 8342.00 cfs

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

Sat, Oct 11, 2008 3625.82 14,390,009 8342 12263 66.0 42.1 69.0

Fri, Dec 02, 2005 3602.16 11,957,332 8342 13255 59.0 36.0 55.0

Sun, Oct 04, 1981 3672.48 20,305,956 8342 3370 68.0 55.0 --

Fri, Oct 05, 1979 3677.78 21,123,056 8342 11100 90.0 62.0 --

Fri, Oct 28, 1966 3527.46 6,273,039 8342 10800 72.0 50.0 --

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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