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 6336 cfs

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

Fri, Oct 25, 2013 3591.00 10,911,275 6336 7825 71.1 53.1 63.0

Thu, Sep 25, 2003 3604.05 12,140,720 6336 8110 89.1 60.1 73.0

Thu, Apr 12, 1990 3650.32 17,256,008 6336 15000 82.0 37.0 --

Sun, Mar 18, 1990 3652.02 17,468,532 6336 3500 68.0 29.0 --

Sat, Nov 05, 1988 3684.01 21,848,492 6336 5200 77.0 50.0 --

Mon, Jun 29, 1981 3680.71 21,487,258 6336 10400 93.0 73.0 --

Tue, Mar 17, 1981 3678.20 21,121,640 6336 7600 62.0 43.0 --

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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