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 8180 cfs

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

Sun, Mar 11, 2007 3597.51 11,514,069 8180 8980 66.0 39.9 50.0

Tue, Sep 16, 2003 3604.53 12,187,589 8180 8220 91.9 71.1 76.0

Tue, Oct 25, 1994 3653.81 17,694,642 8180 7350 71.0 49.0 --

Sat, Nov 07, 1981 3671.78 20,207,436 8180 8990 61.0 47.0 --

Sat, Oct 27, 1979 3676.58 20,949,998 8180 6230 77.0 50.0 --

Thu, Jul 22, 1976 3671.02 20,253,656 8180 13800 99.0 70.0 --

Tue, Oct 22, 1974 3650.67 17,600,936 8180 13500 74.0 54.0 --

Thu, Oct 13, 1966 3527.89 6,300,493 8180 8390 75.0 51.0 --

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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